The 2004 Citywest Irish Masters was a professional ranking snooker tournament that took place between 21 and 28 March 2004 at the Citywest Hotel in Dublin, Republic of Ireland.

Peter Ebdon won the title by defeating Mark King 10–7 in the final.

The breakdown of prize money for this year is shown below:[1]

[3][4] Qualifying for the tournament took place between 5–10 January 2004 at Pontin's in Prestatyn, Wales.

[4] Round 1 – Best of 9 frames Andrew Higginson 3–5 Mehmet Husnu Adrian Gunnell 4–5 Paul Sweeny David Gilbert 2–5 Supoj Saenla Kristján Helgason w/d–w/o Kurt Maflin Luke Fisher 3–5 Michael Rhodes Ryan Day 5–4 Philip Williams Jason Prince 5–3 Ian Brumby Ricky Walden 4–5 Scott MacKenzie Craig Butler 4–5 Ding Junhui Wayne Brown 5–2 Steve Mifsud Billy Snaddon 5–0 Gary Thomson Kwan Poomjang 3–5 Ian Preece Atthasit Mahitthi w/o–w/d Alain Robidoux Martin Dziewialtowski 2–5 Adrian Rosa Terry Murphy w/d–w/o Luke Simmonds Jamie Cope 5–4 Stuart Mann Matthew Couch 5–1 Ian Sargeant Munraj Pal 5–3 Andy Neck Peter Lines 3–5 Darryn Walker Leo Fernandez 4–5 Tom Ford Colm Gilcreest 5–2 Garry Hardiman Paul Wykes 2–5 Neil Robertson Lee Walker 5–2 Michael Wild Simon Bedford 5–0 Carlo Giagnacovo Rory McLeod 5–0 James Leadbetter Andrew Norman 5–2 Stephen Croft Jason Ferguson 0–5 Steven Bennie Johl Younger 3–5 Joe Delaney Paul Davies 5–2 Liu Song Bradley Jones 5–1 Joe Meara Tony Jones 0–5 Martin Gould Joe Johnson w/d–w/o Chris Melling [4]