| Title | Author | Composition Date | Publisher | 
| A Lament for Art Óg, Pádraig and Brian Mhag Mathghamhna | Ó Caiside, Éamonn | 1691 | (B.Á.C.: NUI, 1941) | 
| A Lament in Irish for John Stafford, Coadjutor Bishop of Ferns |  | 1781 | (Loch Garman: The Uí Cinsealaigh Historical Society, 1970) | 
| A Lost History of the Walsh Family, 1588 | Anaithnid | 1664 | (B.Á.C.: NUI, 1997) | 
| An Leabhar Muimhneach | Tuibear, Riosdard | 1716 | (B.Á.C.: O.S., 1940) | 
| Lá 'le Shain Seáin | Ó Longáin, Micheál Óg | 1821 | (Má Nuad: Cuallacht Chuilm Cille, 1926) | 
| Lá an Bhreitheamhnais | Anaithnid | 1875 | (B.Á.C.: Connradh Chuilm Naomhtha, 1911) | 
| Ladhar den Lus Mhór | Sheehan, M. Rev. | 1923 | Gill, M.H. & Son, Ltd | 
| Láimh-leabhar na Gaedhilge - A Handbook of Modern Irish Part II (Handbook of Modern Irish Part II, A)
 | Mac Énrí, An Dr | 1919 | Gill, M. H. and Son Limited | 
| Lámhscríbhinn Staire an Bhionadaigh | Mac Bionaid, Art | 1857 | (Muineachán: Éigse Oirialla, 1994) | 
| Laoi na Con Duibhe |  | 1860 | (B.Á.C.: An Cumann le Béaloideas Éireann, 1939) | 
| Laoithe na Féinne |  | 1772 | (B.Á.C.: Clólucht an Talbóidigh Teor, 1941) | 
| LEABHAR AR ÁIREAMH - AN CHÉAD CHUID | Ó Máille, Micheál | 1910 | Connradh na Gaedhilge | 
| Leabhar Branach |  | 1594 | (B.Á.C.: I.A.B., 1944) | 
| Leabhar Cainte Gaedhilge-Béarla | Ua Concheanainn, Tomás | 1903 | Connradh na Gaedhilge | 
| Leabhar Cloinne Aodha Buidhe | Anaithnid | 1680 | (B.Á.C.: O.S., l931) | 
| Leabhar Filidheachta Fá Choinne na Scoil | Bailithe ag Seághan Mac a' Bhaird | 1909 | Mac Ghuill, M.H. agus a Mhac, Teó | 
| Leabhar Geograiphe | Aistrithe ag Seosamh Laoide | 1906 | Comhlucht Oideachais na hÉireann | 
| Leabhar na nvrnaightheadh gcomhchoidchiond | Ó Domhnaill, Uilliam | 1608 | (B.Á.C.: Seón Francke, 1608) | 
| Leabhar Sgeulaigheachta | In eagar ag Dubhglas De hÍde | 1889 | Gill | 
| Leabhuir na Seintiomna | Bedel, Uilliam | 1685 | (Londain: R. Everingham, 1685) | 
| Leaves from a Dublin Mansucript |  | 1725 | (B.Á.C.: NUI, 1939) | 
| Leaves from Belfast Manuscripts | Mac Cuarta, Séamus Dall | 1732 | (B.Á.C.: NUI, 1942) | 
| Lectures on the Ms. Materials of Ancient Irish History |  | 1764 | (B.Á.C,: James Duffy, 1861) | 
| Leitir Ó Dhonnchadh Ó Fhloinn | Ó Floinn, Donncha | 1805 | (B.Á.C.: Hodges, Figgis & Co. Ltd., 1912-1913) | 
| Leoithne Andeas | Ó Donnchadha, Tadhg | 1905 | Gill, M.H. agus a Mhac | 
| Liam Ó Duinnín cct. | Ó Duinnín, Liam Cct. | 1834 | (Má Nuad: Cuallacht Chuilm Cille, 1926) | 
| Life of St. Mochuda of Lismore agus Life of St. Declan of Ardmore |  | 1629 | (Londain: I.T.S., 1914) | 
| Literary Forgeries in Irish | Ó Néill, Pádraig | 1820 | (B.Á.C.: NUI, 1940) | 
| Litir Naomh Peadair Damien chum an darna Alexandair, Pápa | Anaithnid | 1818 | (B.Á.C.: Cuallacht Chuilm Cille, 1912) | 
| Litir Ó Thadhg Mac Bruaidheadha | Mac Bruaideadha, Tadhg mac Dáire | 1617 | (B.Á.C.: NUI, 1994-1995) | 
| Litreacha Gaedhilge le hAghaidh an Aosa Óig | Ua Duinnín, Pádraig, An tAthair | 1905 | Gill, M. H. agus a Mhac | 
| Lúb na Caillighe agus Sgéalta eile | Mag Ruaidhrí, Micheál | 1910 | Clódhanna Teo. | 
| Lucerna Fidelium | Ó Maolmhuaidh, Froinsias | 1676 | (B.Á.C.: I.A.B., 1962) | 
| Lucht na Simléirí |  | 1684 | (B.Á.C.: NUI, 1973-1974) | 
| Lúcián | Lucian | 1924 | Brún & Ó Nóláin, Teor. | 
| Lugh Lámhfhada and the Death of Balar Ua Néid | Anaithnid | 1630 | (B.Á.C.: I.A.B., 1954) | 
| Lughaidh Mac Con | Ua Laoghaire, Peadar, An tAthair | 1914 | Brún & Ó Nóláin, Teor. | 
| Luibheólas | Tóibín, Seán | 1918 | Lóchrainn, An | 
| Luibhleabhrán | Hogan, Edmund; Hogan, John, Mac Erlean, John C. | 1900 | M. H. Gill and Son | 
	| Title | Author | Composition Date | Publisher | 
| A List of New Words not found in O'Reilly's Dictionary. | Féach bailitheoir | 1902 | Connradh na Gaedhilge | 
| An Leabharlann | Ní fios | 1905 | An Claidheamh Soluis | 
| An Leámainn Béarlóra | Méarthóg Ghuill | 1900 | An Claidheamh Soluis | 
| An Leanbh Sighe. | Ní fios | 1886 | Connradh na Gaedhilge | 
| An Leigheas | Ní fios | 1899 | An Claidheamh Soluis | 
| An Leughthoir Gaedhealach. | Ní fios | 1897 | Connradh na Gaedhilge | 
| An Lispín Draoidheachta | Ní Eadhra, Máire | 1909 | An Claidheamh Soluis | 
| An Litiordhacht Nua Gaedhilge | MacGinley, P.T. | 1902 | An Claidheamh Soluis | 
| An Litiordhacht Nua Gaedhilge (Ar Leanamhaint) | MacGinley, P.T. | 1902 | An Claidheamh Soluis | 
| An Litiordhacht Nua Gaedhilge (Ar Leanamhaint) | MacGinley, P.T. | 1902 | An Claidheamh Soluis | 
| An Litir Aodhaireachta | Ní fios | 1901 | An Claidheamh Soluis | 
| AN LÓCHRANN | Údair éagsúla | 1918 |  | 
| An Long 's an bád | Cnú Deireóil | 1901 | An Claidheamh Soluis | 
| An Long 's an Bád | Feargus Finn-Bhéil | 1901 | An Claidheamh Soluis | 
| An Long 's an Bád | Ní fios | 1901 | An Claidheamh Soluis | 
| An Lorilei - aistrighthe | Aistrithe ag Séamus ua Séagha | 1900 | An Claidheamh Soluis | 
| L'Irelandais Exile. | Féach aistritheoir | 1882 | Connradh na Gaedhilge | 
| L'Irelandais Exile. | Féach aistritheoir | 1882 | Connradh na Gaedhilge | 
| Lá 's mé thríd an tír ag taisdeal. | Mac Domhnaill, Seaghán Clárach | 1898 | Connradh na Gaedhilge | 
| Lá an Aonaigh sa Spidéal | Nic Ghabhann, Caitlín | 1912 | An Claidheamh Soluis | 
| Lá an Argóna | Ní fios | 1914 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá fá'n dtuaith | Mac Piarais, Pádraig | 1902 | An Claidheamh Soluis | 
| Lá Feil' Bríghde. 1924 | Údair éagsúla | 1924 | Comhaltas Uladh | 
| Lá Fheil' Pádraig na bhFeart. 1924 | Údair éagsúla | 1924 | Comhaltas Uladh | 
| Lá Fhéile an Chonnartha | Ní fios | 1903 | An Claidheamh Soluis | 
| Lá Fhéile Pádraig | Ní fios | 1903 | An Claidheamh Soluis | 
| Lá Fhéile Pádraig. | Ní fios | 1903 | Connradh na Gaedhilge | 
| Lá na bhFear mBuidhe | Cineál Eochaidh | 1902 | An Claidheamh Soluis | 
| Lá na gCrann | Ní fios | 1904 | An Claidheamh Soluis | 
| Lá na nAmadán | Cúchulainn | 1901 | An Claidheamh Soluis | 
| Lá na nAmadán (ar lean) | Cúchulainn | 1901 | An Claidheamh Soluis | 
| Lá na nAmadán (ar lean) | Ní fios | 1901 | An Claidheamh Soluis | 
| Lá Nodlag Mór. | Féach ainm cleite | 1908 | Connradh na Gaedhilge | 
| Lá Rásann an Mhothair. | Féach ainm cleite | 1902 | Connradh na Gaedhilge | 
| Labhairt na Gaedhilge | Ní fios | 1904 | An Claidheamh Soluis | 
| Labhraidh Lorc. | Féach aithriseoir | 1900 | Connradh na Gaedhilge | 
| Láimh Scríbhinne IV. | Ní fios | 1903 | Connradh na Gaedhilge | 
| Láimh-scríbhinne i gCambridge - I. | Ó Catháin, Giollabhrighde | 1905 | Connradh na Gaedhilge | 
| Láimh-scríbhinne i gCambridge - II. | Ó Catháin, Giollabhrighde | 1905 | Connradh na Gaedhilge | 
| Láimh-scríbhinne i gCambridge - III. | Ó Catháin, Giollabhrighde | 1905 | Connradh na Gaedhilge | 
| Láimh-scríbhinne i gCambridge - IV. | Ó Coileáin, Seaghán | 1905 | Connradh na Gaedhilge | 
| Láimh-scríbhinne i gCambridge - VI. | Ó Catháin, Giollabhrighde | 1905 | Connradh na Gaedhilge | 
| Láimh-scríbhinne. | Mac Cunsaidín, Séamus | 1903 | Connradh na Gaedhilge | 
| Láimh-scríbhinne. | Ní fios | 1903 | Connradh na Gaedhilge | 
| Láimh-scríbhinne. | Ní fios | 1903 | Connradh na Gaedhilge | 
| Láimh-scríbhinne. V. | Ní fios | 1903 | Connradh na Gaedhilge | 
| Láimh-scríbhinne. VI. | Ní fios | 1903 | Connradh na Gaedhilge | 
| Láimhealadhain Cheilteach. Sa Bhreatain | Torna | 1914 | An Claidheamh Soluis | 
| Láimhealadhna sa Bhreatain | Tórna | 1914 | An Claidheamh Soluis | 
| Láimhscríbhinne. | Féach ainm cleite | 1904 | Connradh na Gaedhilge | 
| Láimhscríbhinne. III. | Ní fios | 1903 | Connradh na Gaedhilge | 
| Láimhseáil na Litreach | Cú Uladh | 1911 | An Claidheamh Soluis | 
| Láimhsgríbhinní Airt Mhic Uidhir | Mac Giolla-an-Atha, Seán | 1912 | Irish Review (Dublin) | 
| Lámh-scríbhinne i gCambridge. | Ó Catháin, Giollabhrighde | 1905 | Connradh na Gaedhilge | 
| Laogh mo Chroidhe. | Ó Mathghamhna, An tAthair Labhrás | 1908 | Connradh na Gaedhilge | 
| Laoi na hÉan-mhná. | Ní fios | 1902 | Connradh na Gaedhilge | 
| Laoidh an Fhiaigh. | Féach bailitheoir | 1902 | Connradh na Gaedhilge | 
| Latest Gaelic Notes. | Ní fios | 1894 | Connradh na Gaedhilge | 
| Latin and English Translation of the Glosses in Windisch's "Compendium of Irish Grammar". | Mc Swiney, James P. | 1883 | Connradh na Gaedhilge | 
| Latin and English Translation of the Glosses in Windisch's "Compendium of Irish Grammar". | Mc Swiney, James P. | 1883 | Connradh na Gaedhilge | 
| Latin and English Translation of the Glosses in Windisch's "Compendium of Irish Grammar". II. | Mc Swiney, James P. | 1884 | Connradh na Gaedhilge | 
| Latin and English Translation of the Reading Lessons in Windisch's "Compendium of Irish Grammar." IV. | Féach aistritheoir | 1884 | Connradh na Gaedhilge | 
| Latin and English Translations of the Reading Lessons in Windisch's "Compendium of Irish Grammar." VI. | Féach aistritheoir | 1884 | Connradh na Gaedhilge | 
| Le grádh dá mhnaoi | Ó Conaire, Padraic | 1912 | Irish Review (Dublin) | 
| Le Grádh do Dhia. | Féach bailitheoir | 1898 | Connradh na Gaedhilge | 
| Le haghaidh an mhic léighinn - Bearlagair na Saor. | Ua Loingsigh, Donnchadh | 1899 | Connradh na Gaedhilge | 
| Le haghaidh an mhic léighinn - Irish Names of Sea Fish. | Féach bailitheoir | 1899 | Connradh na Gaedhilge | 
| Le haghaidh an mhic léighinn - Names of Birds and Plants. | Ua Loinghsigh, Donnchadh | 1899 | Connradh na Gaedhilge | 
| Le haghaidh Feise Laighean agus Midhe. | Féach bailitheoir | 1901 | Connradh na Gaedhilge | 
| Le haghaidh Feise Laighean agus Midhe. | Féach bailitheoir | 1901 | Connradh na Gaedhilge | 
| Le haghaidh Feise Laighean agus Midhe. | Ní fios | 1901 | Connradh na Gaedhilge | 
| Leabh. 1 Uimh, 1. Meitheamh 1923 | Údair éagsúla | 1923 | Coláiste na hIolsgoile, Gaillimh | 
| Leabhair | Blfsn | 1914 | An Claidheamh Soluis | 
| Leabhair Ghaedhilge Korbel, Humboldt Co. California | Ó Cuinn, Séamas | 1899 | An Claidheamh Soluis | 
| Leabhair Lámh. The Rossmore Manuscripts. | Mac Néill, Eoin | 1902 | Connradh na Gaedhilge | 
| Leabharlann Cheart | Ní fios | 1905 | An Claidheamh Soluis | 
| Leabharlann Gaedhilge le haghaidh Árann. | Mhac Conceannainn, Tomás | 1898 | Connradh na Gaedhilge | 
| Leabhra Gaedhilge i 'Meiriocá | Niall | 1911 | An Claidheamh Soluis | 
| Leachda an Fhathaigh. | Féach aithriseoir | 1898 | Connradh na Gaedhilge | 
| Leanann Galldachas do'n Ghallbhéarla | Cú Uladh | 1901 | An Claidheamh Soluis | 
| Leas na nGaedheal. | Ó Muircheartaigh, Séamus | 1905 | Connradh na Gaedhilge | 
| Leas-Ainmneacha | Ní fios | 1906 | An Claidheamh Soluis | 
| Leightear Duinn Laoidhthe agus Bimis ag Ol. | Mac Gearailt, Piaras | 1896 | Connradh na Gaedhilge | 
| Léim an Phíobaire. | Ó Catháin, Gb. | 1904 | Connradh na Gaedhilge | 
| Leinster Feis. | Féach ainm cleite | 1901 | Connradh na Gaedhilge | 
| Leinster Feis. | Féach ainm cleite | 1901 | Connradh na Gaedhilge | 
| Leinster Feis. | Féach ainm cleite | 1901 | Connradh na Gaedhilge | 
| Leinster Feis. | Féach ainm cleite | 1901 | Connradh na Gaedhilge | 
| Leinster Feis. | Ní fios | 1901 | Connradh na Gaedhilge | 
| Leinster Football Songs. | Mac Cuarta, Séamus | 1900 | Connradh na Gaedhilge | 
| Leinster Football Songs. | Ua Murchadha, Raodhmann | 1900 | Connradh na Gaedhilge | 
| Liathróideacht. | Féach ainm cleite | 1907 | Connradh na Gaedhilge | 
| Life of Hugh Roe O'Donnell. | Ua Laoghaire, Peadar | 1898 | Connradh na Gaedhilge | 
| Lín-Éadach san Tuaith. | Ní Áilgheasa, Maighréad | 1905 | Connradh na Gaedhilge | 
| Linguistic Notes. | Féach ainm cleite | 1897 | Connradh na Gaedhilge | 
| Lios an Phúca. | Laoide, Seosamh | 1907 | Connradh na Gaedhilge | 
| List of donors and subscribers to the Gaelic Journal. | Ní fios | 1883 | Connradh na Gaedhilge | 
| List of donors and subscribers to the Gaelic Journal. (Concluded). | Ní fios | 1884 | Connradh na Gaedhilge | 
| List of donors and subscribers to the Gaelic Journal. (Continued). | Ní fios | 1883 | Connradh na Gaedhilge | 
| List of donors and subscribers to the Gaelic Journal. (Continued). | Ní fios | 1884 | Connradh na Gaedhilge | 
| List of donors and subscribers to the Gaelic Journal. (Supplementary List of Names omitted.) | Ní fios | 1884 | Connradh na Gaedhilge | 
| Literal Translation of O'Cleary's Narrative. | Ní fios | 1890 | Connradh na Gaedhilge | 
| Litir | Pedersen, Holger | 1899 | An Claidheamh Soluis | 
| Litir | Stúndún, Pádruig | 1899 | An Claidheamh Soluis | 
| Litir | Ua Dubhghaill, S. S. | 1899 | An Claidheamh Soluis | 
| Litir an Athar Seumas MacPháidín. | Mac Pháidín, An tAthair Séamus | 1897 | Connradh na Gaedhilge | 
| Litir Aniar. | Ó Gramhnaigh, Eoghan - O'Gramhna, Eoghan | 1897 | Connradh na Gaedhilge | 
| Litir Aniar. | Ó hÉigearta, Pádraig | 1905 | Connradh na Gaedhilge | 
| Litir ó Chumann na Gaedhilge i Nua-Eabhrac. | Údair éagsúla | 1897 | Connradh na Gaedhilge | 
| Litir ó Thionnsgantóir | Ua Dubhghaill, Tomás Brian | 1899 | An Claidheamh Soluis | 
| Litir ó Úna Ní Fhaircheallaigh | Ní Fhaircheallaigh, Úna | 1914 | An Claidheamh Soluis | 
| Litir ó'n Aifric Theas. | Ua Neachtain, Eoghan | 1897 | Connradh na Gaedhilge | 
| Litir ó'n Athair Micheal Ua h-Iceadha. | Ua hIceadha, An tAthair Micheál | 1897 | Connradh na Gaedhilge | 
| Litir. | Mac Ceanglaigh, Pádraic | 1899 | Connradh na Gaedhilge | 
| Litriughadh na Gaedhilge. Cuid a dhá. | Féach ainm cleite | 1908 | Connradh na Gaedhilge | 
| Litriughadh na Gaedhilge. I. | Ó hIarfhlatha, Dáithí | 1905 | Connradh na Gaedhilge | 
| Litriughadh na Gaedhilge. II. | Ó hIarfhlatha, Dáithí | 1905 | Connradh na Gaedhilge | 
| Litriughadh na Gaedhilge. III. | Ó hIarfhlatha, Dáithí | 1905 | Connradh na Gaedhilge | 
| Litriughadh na Gaedhilge. IV. | Ó hIarfhlatha, Dáithí | 1906 | Connradh na Gaedhilge | 
| Litriughadh na Gaedhilge. V. | Ó hIarfhlatha, Dáithí | 1906 | Connradh na Gaedhilge | 
| Loch Cé | Ní fios | 1900 | An Claidheamh Soluis | 
| Loch Dearg i mBeul an Atha Mhoir. | Breathnach, Peadar | 1896 | Connradh na Gaedhilge | 
| Lochlannach agus Éireannach | Ní fios | 1899 | An Claidheamh Soluis | 
| Log na 'gCeathramhan. | Údair éagsúla | 1909 | Connradh na Gaedhilge | 
| Log na gCeathramhan. | Údair éagsúla | 1909 | Connradh na Gaedhilge | 
| Log na gCeathramhan. | Údair éagsúla | 1909 | Connradh na Gaedhilge | 
| Log na gCeathramhan. | Údair éagsúla | 1909 | Connradh na Gaedhilge | 
| Log na gCeathramhan. | Údair éagsúla | 1909 | Connradh na Gaedhilge | 
| Loingeas Mac n-Uisleand andso. | Ní fios | 1883 | Connradh na Gaedhilge | 
| Loiritliche Aab Ch. | Féach bailitheoir | 1892 | Connradh na Gaedhilge | 
| Long an Óir | Ó Flaithbheartaigh, Seaghán | 1907 | An Claidheamh Soluis | 
| Lorcán Ó Tuathail. | Ó Grádaigh, Énrí | 1904 | Connradh na Gaedhilge | 
| Lorg na nGaodhail i gCumbria, i dTuaisceart Shasana. | Ua Ruaidhrí, Seán | 1908 | Connradh na Gaedhilge | 
| Luan a' t-Sléibhe. | Féach aithriseoir | 1891 | Connradh na Gaedhilge | 
| Luchd Iomáine i nÁrdráthain | Ní fios | 1901 | An Claidheamh Soluis | 
| Lucht Mharbhtha na Gaedhilge | Cothrom na Féinne | 1915 | An Claidheamh Soluis | 
| Lucht na Poilitidheachta agus an Connradh | Ó Máille, Eoghan | 1914 | An Claidheamh Soluis | 
| Lughnasa, 1916 | Údair éagsúla | 1916 | An Lóchrann | 
| Lughnasa, 1917 | Údair éagsúla | 1917 | An Lóchrann | 
| Lughnasa, 1918 | Údair éagsúla | 1918 | An Lóchrann | 
| Lúgnas, 1923 | Údair éagsúla | 1923 | Coláiste na hIolsgoile, Gaillimh | 
| Luibh-Eolas | Tórna | 1907 | An Claidheamh Soluis | 
| Lúnasa, 1920 | Údair éagsúla | 1920 | An Lóchrann |