| A 'Danish' legacy | Lacey, Brian | Article in Book | Wordwell | 2003 |
| A possible context for Roman finds from west Donegal | Lacey, BrianMcGlade, StevenWilson, Jacqueline Cahill | Article in Journal | | 2018 |
| Admiral Boyle Somerville : archaeologist and pioneering archaeoastronomer | Lacey, Brian | Article in Journal | | 2011 |
| Adomnán and Donegal | Lacey, Brian | Article in Book | | 2010 |
| Adomnán, Adhamhnán, Eunan
Life and Afterlife of a Donegal Saint | Lacey, Brian | Monograph or Collective Volume | Four Courts | 2021 |
| Archaeology and war in an Irish town | Lacey, Brian | Article in Journal | | 2009 |
| Archaeology survey of county Donegal | Lacey, Brian | Monograph or Collective Volume | [s.n.] | 1983 |
| Billy's Boys or an Orangeman's dilemma | Lacey, Brian | Article in Journal | | 2008 |
| Cenél Conaill and the Donegal Kingdoms | Lacey, Brian | Monograph or Collective Volume | Four Courts | 2006 |
| Colmcille - the 1,500th anniversary of his birth | Lacey, Brian | Article in Journal | | 2015 |
| Colum Cille and the Columban tradition | Lacey, Brian | Monograph or Collective Volume | Four Courts | 1997 |
| Colum Cille and the diocese of Derry | Lacey, Brian | Article in Book | | 2000 |
| Columba, founder of the monastery of Derry? - 'Mili manet Incertus' | Lacey, Brian | Article in Journal | | 1998 |
| Constructing Colum Cille | Lacey, Brian | Article in Journal | | 2004 |
| Cosáin thar thírdhreach na hEorpa ; Cosáin thar thírdhreach chultúrtha na hEorpa, 2000-2003rp | | Monograph or Collective Volume | Cosáin | 2003 |
| County Derry in the early historic period | Lacey, Brian | Article in Book | | 1999 |
| Cúl Dreimne, Drumcliff and other Sligo associations with Colum Cille | Lacey, Brian | Article in Journal | | 2020 |
| Dendro-archaeology : of a slightly different kind | Lacey, Brian | Article in Book | | 2009 |
| Derry and the Easter Rising | Lacey, Brian | Article in Journal | | 2016 |
| Derry before Londonderry | Lacey, Brian | Article in Book | | 2015 |
| Derry~Londonderry | Lacey, Brian | Article in Book | | 2018 |
| Discover Derry | Lacey, Brian | Monograph or Collective Volume | O'Brien Press | 1999 |
| Facts and fabrications : the earls and their Ulster ancestry | Lacey, Brian | Article in Book | | 2010 |
| Fahan, Tory, Cenél nÉogain and the Picts | Lacey, Brian | Article in Journal | | 2008 |
| Inishdooey and its ancient church | Lacey, Brian; Mac Gairbheá; O'Toole, Peter (Aerial photographs) | Article in Journal | | 2024 |
| Lug's forgotten Donegal kingdom: the archaeology, history and folklore of the Síl Lugdach of Cloghaneely | Lacey, Brian | Monograph or Collective Volume | Four Courts Press | 2012 |
| Medieval and monastic Derry : sixth century to 1600 | Lacey, Brian | Monograph or Collective Volume | Four Courts | 2013 |
| Miscellanea : Tirechán's Sírdruimm, Adomnán's Dorsum Tómme | Lacey, Brian | Article in Journal | | 2002 |
| Monster and monastery : St Kevin's Lives and the expansion of Glendalough | Lacey, Brian | Article in Book | | 2011 |
| Obituary. Anne Hamlin (born 29 July 1940; died 5 June 2003) | Lacey, Brian | Article in Journal | | 2003 |
| Obituary. Mairéad Dunlevy. Born 31 December 1941; Died 18 March 2008 | Lacey, Brian | Article in Journal | | 2008 |
| Prehistoric archaeology of Donega l: c. 7000 BC to c. AD 500 | Lacey, Brian | Article in Book | | 2013 |
| Review article: The Irish archaeological studies of Boyle Somerville, 1909-1936 | Lacey, Brian | Article in Journal | | 2008 |
| Revival of re-invention : Columban traditions in nineteenth-century Derry | Lacey, Brian | Article in Journal | | 2004 |
| Saint Columba : his life and legacy | Lacey, Brian | Monograph or Collective Volume | Columba | 2013 |
| Séamus Ó Ceallaigh agus staraithe Gaelacha an Iarthuaiscirt. | Lacey, Brian | Article in Book | | 2018 |
| Some large hilltop and hill-slope stone enclosures in County Donegal | Lacey, Brian | Article in Book | | 2009 |
| Terrible queer creatures : homosexuality in Irish history | Lacey, Brian | Monograph or Collective Volume | Wordwell | 2008 |
| The 'Bend of the Finn' : an archaeological landscape in east Donegal | Lacey, Brian | Article in Book | | 2007 |
| The Amrae Coluimb Cille and the Uí Néill | Lacey, Brian | Article in Journal | | 2004 |
| The battle of Cúl Dreimne - a reassessment | Lacey, Brian | Article in Journal | | 2003 |
| The Cenél nEóghain of Inishowen: Aldfrith of Northumbria's Donegal cousins? | Lacey, Brian | Article in Journal | | 2018 |
| The Creggan rath | Lacey, BrianMcGuinness, Michael J. | Article in Journal | | 1984 |
| The earliest books by Donegal authors | Lacey, Brian | Article in Journal | | 2022 |
| The Gaelic historians of the north-west, particularly Séamus Ó Ceallaigh | Lacey, Brian | Article in Journal | | 2016 |
| The life of Columcille | Lacey, BrianO'Donnell, Manus, Lord of Tirconnell | Monograph or Collective Volume | Four Courts | 1998 |
| The origins of the Uí Dochartaigh of Inishowen | Lacey, Brian | Article in Journal | | 2020 |
| The political geography of Donegal, AD 500-800 | Lacey, Brian | Article in Book | | 2013 |
| The ringed cross at Ray, Co. Donegal: context and date | Lacey, Brian | Article in Journal | | 2016 |
| Three 'royal sites' in Co. Donegal | Lacey, Brian | Article in Book | | 2011 |