Mark Allan Marissen (born 1966 in St. Thomas, Ontario, Canada) is a Canadian political strategist and principal of Burrard Strategy Inc.,[1] a communications company he founded in 1998.

[4] Following Stephane Dion's resignation, Marissen supported Michael Ignatieff for Liberal Party leader.

[5] Ignatieff was confirmed as Leader at a national convention in Vancouver in late April 2009.

[6] After Takach withdrew from the contest, Marissen joined him in supporting Justin Trudeau.

In July 2023, he and all other Progress Vancouver candidates were disqualified from running in a local election until after the 2026 general local elections for failing to meet campaign financing disclosure requirements.