|Date of birth:||March 10, 1960|
|Place of birth:||Halifax, Nova Scotia|
|High school:||Sir Wilfrid Laurier Secondary School (Ottawa)|
|CFL Draft:||1982 / Round: Territorial exemption|
|NFL Draft:||1982 / Round: 12 / Pick: 323|
Donald "Mark" Seale (born March 10, 1960 in Halifax, Nova Scotia) is a former professional Canadian football defensive lineman who played seven seasons in the Canadian Football League for three teams.
Seale attended Sir Wilfrid Laurier Secondary School in Ottawa, Ontario, where he lettered in both hockey and football. He also played for the Ottawa Sooners for two seasons before attending the University of Richmond in Virginia, where he earned a Bachelor of Arts degree in 1982.
- "NFL Draft History: 1982". NFL.com. http://www.nfl.com/draft/history/fulldraft?season=1982#round12.
- "OFC to the Pros". Ontario Football Conference. Archived from the original on 2007-12-05. https://web.archive.org/web/20071205073440/http://www.ofcfootball.com/english/docs/0/1431.asp.
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