Omari Sheldon Allen (born 19 July 1990) is a West Indian cricketer. Allen is a right-handed batsman who bowls right-arm off break. He was born at Montserrat. In 2006, Montserrat were invited to take part in the 2006 Stanford 20/20, whose matches held official Twenty20 status. Allen made a single appearance for Montserrat in their first-round match against Guyana, with their first-class opponents winning the match by 8 wickets. He wasn't required to bat in Montserrat's total of 115/8, while during Guyana's innings he wasn't called upon to bowl. As of 2009, he was playing minor matches for Montserrat.