| Theatre and globalization: Irish drama in the Celtic Tiger era P Lonergan Palgrave Macmillan, 2009 | 197 | 2009 |
| Theatre and social media P Lonergan Bloomsbury Publishing, 2015 | 80 | 2015 |
| The theatre and films of Martin McDonagh P Lonergan A&C Black, 2012 | 77 | 2012 |
| " The laughter will come of itself. The tears are inevitable": Martin McDonagh, globalization, and Irish theatre criticism P Lonergan Modern Drama 47 (4), 636-658, 2004 | 45 | 2004 |
| Too Dangerous to Be Done? Martin McDonagh's Lieutenant of Inishmore P Lonergan Irish Studies Review 13 (1), 65-78, 2005 | 34 | 2005 |
| Irish Drama and Theatre Since 1950 P Lonergan Bloomsbury Publishing, 2019 | 22 | 2019 |
| ‘A Twisted, Looping Form’ Staging dark ecologies in Ella Hickson’s Oil P Lonergan Performance Research 25 (2), 38-44, 2020 | 12 | 2020 |
| The Representation of Phineas Finn: Anthony Trollope's Palliser Series and Victorian Ireland P Lonergan Victorian Literature and Culture 32 (1), 147-158, 2004 | 12 | 2004 |
| Echoes Down the Corridor P Lonergan, R O'Dwyer Peter Lang, 2007 | 11 | 2007 |
| JM Synge, authenticity, and the regional P Lonergan Regional Modernisms, 2013 | 10 | 2013 |
| “The Lost and the Lonely”: Crisis in Three Plays by Enda Walsh P Lonergan Études irlandaises, 137-154, 2015 | 9 | 2015 |
| The Gate Theatre, Dublin: Inspiration and Craft D Clare, D Lally, P Lonergan Peter Lang Limited, International Academic Publishers, 2019 | 8 | 2019 |
| Irish Drama: Local and Global Perspectives N Grene, P Lonergan Peter Lang Limited, International Academic Publishers, 2019 | 8 | 2019 |
| Irish Short Fiction: 1880–1945 P Lonergan A Companion to the British and Irish Short Story, 51-64, 2008 | 8 | 2008 |
| ‘Never Mind the Shamrocks’: Globalizing Martin McDonagh P Lonergan Martin McDonagh: A Casebook, 2007.149-177, 2007 | 7 | 2007 |
| Seven Steps to Martin McDonagh P Lonergan Irishtimes. com. Irish Times 6, 2012 | 5 | 2012 |
| Irish Theatre and Globalisation: A Faustian Pact? P Lonergan Cultural Perspectives on Globalisation and Ireland. Frankfurt am Main: Peter …, 2011 | 5 | 2011 |
| Interactions: Dublin Theatre Festival, 1957-2007 N Grene, P Lonergan, L Chambers Peter Lang, 2008 | 5 | 2008 |
| Anthony Trollope's Palliser novels and anti-Irish prejudice P Lonergan New Hibernia Review/Iris Éireannach Nua 11 (2), 116-129, 2007 | 5 | 2007 |
| Christina Reid P Lonergan Irish Women Writers: An A-to-Z Guide, 294-298, 2015 | 4 | 2015 |
