2016–17 Regional Four Day Competition
| Dates | 11 November 2016 – 24 April 2017 |
|---|---|
| Administrator(s) | WICB |
| Cricket format | First-class (four-day) |
| Tournament format(s) | Double round-robin |
| Champions |
 Guyana (9th title) |
| Participants | 6 |
| Matches played | 30 |
| Most runs |
 Yannic Cariah (691) |
| Most wickets |
 Nikita Miller (58) |
The 2016–17 Regional Four Day Competition was the 51st edition of the Regional Four Day Competition, the domestic first-class cricket competition for the countries of the West Indies Cricket Board (WICB). The competition ran from 11 November 2016 to 24 April 2017. The WCIB re-introduced day/night fixtures into the competition with six matches played as such.
Six teams contested the tournament – Barbados, Guyana, Jamaica, the Leeward Islands, Trinidad and Tobago, and the Windward Islands. Guyana won the competition, their third consecutive title, after beating the Windward Islands in their penultimate match.
Champions
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