Alzarri Joseph is an Antiguan cricketer who plays for the Leeward Islands in West Indian domestic cricket. He is a right-arm fast bowler. A Windies under-19s player, Joseph made his first-class debut for the Leewards during the 2014–15 Regional Four-Day Competition. In December 2015, Joseph was named in the Windies squad for the 2016 Under-19 World Cup. At the tournament he took 13 wickets from six matches to finish as his team's leading wicket-taker (and equal third overall). His best performance was 4/30 against Zimbabwe, which saw him named man of the match.