The 1975–76 Gillette Cup was the second edition of what is now the Regional Super50, the domestic limited-overs cricket competition for the countries of the West Indies Cricket Board (WICB).

Sponsored by Gillette, it was the first season of the competition to carry that name.

[1] The competition was impacted by rain, with only three of the six scheduled group-stage matches being completed.

Barbados were eventually joined by Trinidad and Tobago in the final, going on to defeat their opponent by 43 runs to claim their second domestic one-day title.

[2] Two Barbadians, Gordon Greenidge and Wayne Daniel, led the tournament in runs and wickets, respectively.