Mark Easter (born 19 October 1982 in Mbabane, Swaziland) is a retired rugby union footballer who played at No. 8 or Flanker for Sale Sharks and Northampton Saints. He is the younger brother of former Harlequins and England player Nick Easter.

Mark is a former pupil of Dulwich College and a member of the winning Old Alleynian 2003 team.

On 8 March 2011, Sale Sharks announced that he had signed a two-year contract to play for them from the 2011–12 season.