Sipke Ernst (born 8 January 1979), is a Dutch chess Grandmaster, Dutch Chess Championship medalist, and FIDE Trainer.

In the 2000s, Sipke Ernst was one of the leading Dutch chess players.

Ernst has won many international chess tournaments, including Lichfield in 2000[citation needed] and Schaakfestival in Groningen in 2001, 2005, and 2006.

Ernst additionally played for the Netherlands in the European Team Chess Championship[2] in 2009, at the reserve board in the 17th European Team Chess Championship in Novi Sad (+2, =2, -1).

This biographical article relating to a Dutch chess figure is a stub.