| 'A typical collection of lower middle-class Londoners'. The composition of the jury that tried and convicted Roger Casement | Howlin, Niamh | Article in Journal | | 2017 |
| 'Illegal, immoral and unpatriotic’: cross-border smuggling and the courts | Black, Lynsey ; Jefferis, Danielle J. | Article in Book | Four Courts Press | 2024 |
| A century of courts : the Courts of Justice Act 1924 | | Monograph or Collective Volume | Four Courts Press | 2024 |
| A decade of legal history scholarship | Howlin, Niamh ; Larkin, Felix M. | Article in Book | | 2025 |
| A wrongful conviction: the murder of John Donovan in Glenlara | Howlin, Niamh | Article in Journal | | 2023 |
| Adultery in the courts: Damages for Criminal Conversation in Ireland | Howlin, Niamh | Article in Book | | 2017 |
| Barristers in Ireland : an evolving profession since 1921 | Howlin, Niamh | Monograph or Collective Volume | Four Courts Press | 2023 |
| Confluences of law and history : Irish Legal History Society discourses and other papers, 2011-21 | NA | Monograph or Collective Volume | Four Courts Press | 2025 |
| Controlling jury composition in nineteenth-century Ireland | Howlin, Níamh | Article in Journal | | 2009 |
| Crime, coroners and criminal procedure in early nineteenth century Dublin | Howlin, Niamh | Article in Journal | | 2023 |
| Dublin's roving Law Library | Howlin, Niamh | Article in Book | | 2025 |
| Fenians, foreigners and jury trials in Ireland, 1865-1870 | Howlin, Niamh | Article in Journal | | 2010 |
| Juries in Ireland : laypersons and law in the long nineteenth century | Howlin, Niamh | Monograph or Collective Volume | Four Courts Press | 2017 |
| Law and religion in Ireland, 1700-1970 | | Monograph or Collective Volume | Palgrave Macmillan | 2021 |
| Law and the Family in Ireland, 1800-1950 | | Monograph or Collective Volume | Palgrave | 2017 |
| Merchants and esquires : special juries in Dublin, 1725-1833 | Howlin, Niamh | Article in Book | | 2008 |
| The legal history of religion in Ireland | Costello, Kevin ; Howlin, Niamh | Article in Book | | 2021 |
| The nineteenth-century jury : a study in depth | Howlin, Niamh | Thesis | | 2008 |
| “The terror of their lives”: Irish jurors' experiences | Howlin, Niamh | Article in Journal | | 2011 |