| A Gallican psalter in Irish script : Vaticanus Lat. 12910 | Bieler, Ludwig | Article in Book | NA | 1987 |
| An Austrian fragment of a life of St. Patrick | Bieler, Ludwig | Article in Journal | | 1961 |
| Anecdotum Patricianum : fragments of a Life of Patrick from MSS Cotton Vitellius E vii and Rawlinson B 479 | Bieler, Ludwig | Article in Book | | 1944 |
| Casconius, the monster of the 'Navigatio Brendani' | Bieler, Ludwig | Article in Journal | | 1946 |
| Christianity in Ireland during the fifth and sixth centuries : a survey and evaluation of the sources | Bieler, Ludwig | Article in Journal | | 1964 |
| Codices Patriciani Latini : a descriptive catalogue of Latin manuscripts relating to St. Patrick | Bieler, Ludwig | Monograph or Collective Volume | Institute for Advanced Studies | 1942 |
| Der Bibeltext des heiligen Patrick | Bieler, Ludwig | Article in Journal | | 1947 |
| Die lateinische Kultur Irlands im Mittelalter in der Forschung der zwanzigsten Jahrhunderts | Bieler, Ludwig | Article in Book | | 1965 |
| Father Francis Nugent, founder of the Irish Capuchins | Bieler, Ludwig | Article in Journal | | 1948 |
| Four Latin lives of St Patrick : Colgan's 'Vita Secunda' , 'Quarta', 'Tertia' and 'Quinta' | Bieler, LudwigColgan, John | Monograph or Collective Volume | Institute for Advanced Studies | 1971 |
| Hagiography and romance in medieval Ireland | Bieler, Ludwig | Article in Journal | | 1975 |
| Hibernian Latin | Bieler, Ludwig | Article in Journal | | 1954 |
| Insular palaeography : present state and problems | Bieler, Ludwig | Article in Journal | | 1949 |
| Interpretationes Patricianae | Bieler, Ludwig | Article in Journal | | 1967 |
| Iohannis Scotti Eriugenae Periphyseon (de diuisione naturae) | | Monograph or Collective Volume | | 1981 |
| Ireland : harbinger of the middle ages | Bieler, Ludwig | Monograph or Collective Volume | Oxford University Press | 1963 |
| Ireland and the culture of early medieval Europe | Bieler, LudwigSharpe, Richard | Monograph or Collective Volume | Variorum | 1987 |
| Ireland's contribution to the culture of Northumbria | Bieler, Ludwig | Article in Book | | 1976 |
| Irish manuscripts in medieval Germania | Bieler, Ludwig | Article in Journal | | 1957 |
| Irland : Wegbereiter des Mittelalters | Bieler, Ludwig | Monograph or Collective Volume | Urs Graf Verlag | 1961 |
| John Colgan as editor | Bieler, Ludwig | Article in Journal | | 1948 |
| La conversione al cristianesimo dei celti insulari e le sue repercussioni nel continente | Bieler, Ludwig | Article in Book | | 1967 |
| Letter of credence by Donatus Magrahe, prior of Lough Derg, for Nylanus O Ledan, priest and pilgrim | | Article in Journal | | 1959 |
| Liber epistolarum Sancti Patricii | Bieler, Ludwig | Monograph or Collective Volume | Royal Irish Academy | 1993 |
| Libri epistolarum Sancti Patricii Episcopi | | Monograph or Collective Volume | Stationery Office for the Irish Manuscripts Commission | 1952 |
| Libri epistolarum Sancti Patricii episcopi : addenda | Bieler, Ludwig | Article in Journal | | 1967 |
| Libri epistolarum sancti Patricii episcopi : introduction, text and commentary | | Monograph or Collective Volume | Royal Irish Academy | 1994 |
| Libri epistolarum sancti Patricii episcopi, part 1 : introduction text | Bieler, LudwigPatricius, Santus | Article in Journal | | 1950 |
| Libri epistolarum Santi Patricii Episcopi. Part 2 : commentary | Bieler, LudwigPatricius, Santus | Article in Journal | | 1951 |
| Manuscript studies in Ireland, 1949-50 | Bieler, Ludwig | Article in Journal | | 1950 |
| Manuscript studies in Ireland, 1951-52 | Bieler, Ludwig | Article in Journal | | 1954 |
| O'Sullivan Beare's 'Patriciana Decas' : a modern Irish adaptation | Bieler, Ludwig | Article in Journal | | 1946 |
| Palaeographical papers | Bieler, LudwigLowe, E. A. | Monograph or Collective Volume | [s.n.] | 1972 |
| Patrician studies in the 'Irish Ecclesiastial Record' | Bieler, Ludwig | Article in Journal | | 1964 |
| Patriciology : reflections on the present state of Patrician studies | Bieler, Ludwig | Article in Journal | | 1962 |
| Patrick and the Kings : apropos a new chronology of St Patrick | Bieler, Ludwig | Article in Journal | | 1956 |
| Recent research on Irish hagiography | Bieler, Ludwig | Article in Journal | | 1946 |
| Saint Patrick and Rome | Bieler, Ludwig | Article in Book | | 1956 |
| Sidelights on the chronology of St Patrick | Bieler, Ludwig | Article in Journal | | 1949 |
| Silva Focluti | Bieler, Ludwig | Article in Journal | | 1942 |
| Some recent work on Eriugena | Bieler, Ludwig | Article in Journal | | 1973 |
| St Patrick a native of Anglesey? | Bieler, Ludwig | Article in Journal | | 1953 |
| St Patrick and Armagh - a symposium : 4, St Secundinus and Armagh | Bieler, Ludwig | Article in Journal | | 1956 |
| St Patrick's Purgatory : contributions towards an historical topography | Bieler, Ludwig | Article in Journal | | 1960 |
| St. Patrick and the British Church | Bieler, Ludwig | Article in Book | | 1968 |
| St. Patrick and the coming of Christianity | Bieler, Ludwig | Monograph or Collective Volume | Gill | 1967 |
| St. Severin and St. Patrick : a parallel | Bieler, Ludwig | Article in Journal | | 1955 |
| Studies on the life and legend of St Patrick | Bieler, LudwigSharpe, Richard | Monograph or Collective Volume | Variorum | 1986 |
| Studies on the text of Muirchú, 1 : the text of MS Novara 77 | Bieler, Ludwig | Article in Journal | | 1948 |
| The 'Notulae' in the Book of Armagh | Bieler, Ludwig | Article in Journal | | 1954 |
| The Book of Armagh | Bieler, Ludwig | Article in Book | | 1967 |
| The Christianisation of the insular Celts during the sub-Roman period and its repercussions on the continent | Bieler, Ludwig | Article in Journal | | 1968 |
| The Christianization of the insular Celts during the sub-Roman period and its repercussions on the continent | Bieler, Ludwig | Article in Journal | | 1968 |
| The chronology of St. Patrick | Bieler, Ludwig | Article in Book | | 1965 |
| The classics in Celtic Ireland | Bieler, Ludwig | Article in Book | | 1971 |
| The humanism of St Columbanus | Bieler, Ludwig | Article in Book | | 1951 |
| The Hymn of Secundinus | Bieler, Ludwig | Article in Journal | | 1953 |
| The Irish Penitentials | | Monograph or Collective Volume | Institute for Advanced Studies | 1963 |
| The island of scholars | Bieler, Ludwig | Article in Journal | | 1952 |
| The life and legend of saint Patrick | Bieler, Ludwig | Article in Journal | | 1952 |
| The life and legend of St Patrick | Bieler, Ludwig | Article in Journal | | 1948 |
| The life and legend of St Patrick : problems of modern scholarship | Bieler, Ludwig | Monograph or Collective Volume | Clonmore & Reynolds | 1949 |
| The lives of Saint Patrick and the Book of Armagh | Bieler, Ludwig | Article in Book | | 1958 |
| The mind of Eriugena : papers of a colloquium, Dublin, 14-18 July 1970 | Bieler, LudwigO'Meara, John | Monograph or Collective Volume | [s.n.] | 1973 |
| The mission of Palladius | Bieler, Ludwig | Article in Journal | | 1948 |
| The Patrician texts in the Book of Armagh | | Monograph or Collective Volume | Institute for Advanced Studies | 1979 |
| The problem of 'Silva Focluti' | Bieler, Ludwig | Article in Journal | | 1944 |
| The Vienna fragments and the tradition of Muirchú's text | Bieler, Ludwig | Article in Journal | | 1959 |
| The works of St. Patrick | Bieler, LudwigPatrick, Saint | Monograph or Collective Volume | Longmans Green|Newman Press | 1953 |
| Towards an interpretation of the so-called 'Canones Wallici' | Bieler, Ludwig | Article in Book | | 1961 |
| Trias Thaumaturga | Bieler, Ludwig | Article in Book | | 1959 |
| Two observations concerning the 'Navigatio Brendani' | Bieler, Ludwig | Article in Book | | 2000 |
| Two observations concerning the 'Navigatio Brendani' | Bieler, Ludwig | Article in Journal | | 1976 |
| Versus Sancti Columbani : a problem re-stated | Bieler, Ludwig | Article in Journal | | 1951 |
| Vindiciae Patricianae : remarks on the present state of Patrician studies | Bieler, Ludwig | Article in Journal | | 1953 |
| Was Palladius surnamed Patricius? | Bieler, Ludwig | Article in Journal | | 1943 |
| Writings on Irish history, 1974 | | Article in Journal | | 1975 |