Featured Authors
Authors
= Author On Tour
- Maggie O'Farrell
- Zoe More O'Ferrall
- Liam O'Flaherty
- Katie O'Flynn
- Mark O'Flynn
- Daniel O'Grady
- Kristina O'Grady
- Andrew O'Hagan
- Sarah Robb O'Hagan
- Margaret O'Hair
- Bill O'hanlon
- Kate O'Hara
- Mary O'Hara
- Maryanne O'Hara
- Mo O'Hara
- Nancy O'Hara
- Tracey O'Hara
- Denis O'Hare
- Sinéad O'Hart
- Dan O'Herlihy
- Maria Josefa O'Higgins
- Michael B. O'Higgins
- Leslie O'Kane
- Trish O'Kane
- Alexandra O'Karma
- David O'Keefe
- Molly O'Keefe
- Jac O'Keeffe
- Kerry O'Keeffe
- Michael O'Keeffe
- Neil O'Keeffe
- Stuart O'Keeffe
- Chris O'Leary
- Denyse O'Leary
- Michael O'Leary
- Michael O'Loughlin
- Michael J. O'Loughlin
- Sheryl O'Loughlin
- Ivan O'Mahoney
- Daniel O'Malley
- Kevin O'Malley
- Mallory O'Meara
- Padraig O'Morain
- Stewart O'Nan
- Patrick O'Neal
- Tatum O'Neal
- Annie O'Neil
- Henry V. O'Neil
- Kevin O'Neil
- Sarah O'Neil
- Tom O'Neil
- Anthony O'Neill
- Cathy O'Neill
- Eugene O'Neill
- Heather O'Neill
- Helen O'Neill
- Kevin O'Neill
- Kim O'neill
- Laura O'Neill
- Margaret O'Neill
- Paul O'Neill
- Poppy O'Neill
- Richard O'Neill
- Rob O'Neill
- Robert O'Neill
- Tony O'Neill
- Mick O'Regan
- Bill O'Reilly
- Brian O'Reilly
- Jane O'Reilly
- Kathleen O'Reilly
- Sean O'Reilly
- Terry O'Reilly
- Tim O'Reilly
- Meghan O'Rourke