The 2009–10 Ulster Rugby season was Ulster's 16th season since the advent of professionalism in rugby union, and their first under director of rugby David Humphreys and head coach Brian McLaughlin.
Following the departure of previous head coach Matt Williams, Ulster put a new management structure in place.
David Humphreys was director of rugby, with overall responsibility for the senior team, the Ulster 'A' team (renamed the Ulster Ravens), the Ulster under-20s and the academy; and Brian McLaughlin was head coach, assisted by forwards coaches Jeremy Davidson and Peter Sharp, and backs coach Neil Doak.
[1] However, Ulster couldn't afford to retain Sharp, and he left in September 2009.
[2] Chief Executive Michael Reid announced he was stepping down in September 2009 after twelve years in the job.
[3] Shane Logan was appointed as his replacement in early 2010.
[4] They finished second in their Heineken Cup pool, failing to qualify for the knockout stage, and 8th in the Celtic League.
Chris Henry was Ulster's Player of the Year.
Andrew Trimble won the IRUPA award for Try of the Year.
Props Hookers Locks Back row Scrum-halves Fly-halves Centres Wings Fullbacks
Props Hookers Locks Back row
Wings Fullbacks Players, other than members of the senior or academy quad, who appeared for the Ulster Ravens or in friendlies.
Props Hookers Locks Back row Scrum-halves Fly-halves Back three 1.
Nigel Brady (for Kyriacou 73'), 17.
Tamaiti Horua (for Henry 57'), 20 Cillian Willis (for Nagusa 74'), 21.
Ian Humphreys (for O'Connor 40'), Jonny Shiels (for Cave (26').
Niall O'Connor (for Humphreys 61'), Timoci Nagusa (for Wallace 52').
Ed O'Donoghue, 5 Ryan Caldwell, 6.
Stephen Ferris, 7 David Pollock, 8.
David Pollock, 7 Willie Faloon, 8.
Replacements: Nigel Brady, Paddy McAllister, Ed O'Donoghue, Chris Henry, Cillian Willis, Ian Humphreys, Jamie Smith.
Replacements: Ryan Fisher, Paddy McAllister, T. J. Anderson, Ali Birch, Ian Porter, Luke Marshall, Darren Cave.
Replacements: Nigel Brady, Adam Macklin, Ed O’Donoghue, Willie Faloon, Paul Marshall, Ian Humphreys, Darren Cave.
Replacements: Alan Whitten (for Court 70'), Ed O’Donoghue (for Diack 68'), Cillian Willis (for Marshall 70'), Darren Cave (for Nagusa 52').
Replacements: Nigel Brady, Paul Karayannis, Dan Tuohy, Mark Robinson, Paul Marshall, Ian Humphreys, Chris Cochrane.
Stephen Dougall, Scott LaValla, 9.
Replacements: Niall Annett, Paul Karayiannis, Neville Magee, Stuart McKenzie, Michael Pyper, Luke Marshall, Craig Gilroy.
Replacements: David McGregor (for Brady 60'), Justin Fitzpatrick (for D. Fitzpatrick 29'), Dan Tuohy, Chris Napier (for Henry 41'), Ian Porter (for Willis 50'), Ian Humphreys, Clinton Schifcofske, Paddy McAllister (for J. Fitzpatrick 65), Paul Pritchard (for O'Donoghue 70'), Nevin Spence (for Seymour 50').
Replacements: Nigel Brady, Tom Court, Declan Fitzpatrick, Ed O'Donoghue, T. J. Anderson, Ian Porter, Niall O'Connor, Jonny Shiels, Darren Cave.
The Ulster Rugby Awards ceremony was held on 20 May 2010.