The 2003–04 Red Stripe Bowl was the 30th edition of what is now the Regional Super50, the domestic limited-overs cricket competition for the countries of the West Indies Cricket Board (WICB).

It ran from 1 to 19 October 2003, with matches played in Antigua and Barbuda and Jamaica.

For a third consecutive season, Antigua and Barbuda entered as a separate team, with the remaining Leeward Islands players competing for a "Rest of Leeward Islands" team.

[1] The semi-finals and final of the competition were all held in Discovery Bay, Jamaica, with Guyana eventually defeating Barbados in the final to win their eighth domestic one-day title.

[2] Guyanese batsman Ramnaresh Sarwan led the tournament in runs, while four bowlers (Dinanath Ramnarine, Pedro Collins, Ian Bradshaw, and Mahendra Nagamootoo) were the joint leading wicket-takers.