Mark Williamson may refer to: *

Mark Williamson (biologist) Mark Herbert Williamson is Professor Emeritus of Biology at the University of York, England. He is an expert on biological invasions. Williamson attended Christ Church, Oxford where he gained a BA degree in 1950 and received a D.Phil. in 195 ...

, British biologist *

Mark Williamson (baseball) Mark Alan Williamson (born July 21, 1959) is a retired professional baseball player who played pitcher in the Major Leagues from 1987 to 1994. He played for the Baltimore Orioles. On April 29, 1988, Williamson pitched 6 shutout innings to help ...

(born 1959), retired American baseball player * Mark Williamson (businessman) (born 1957), British businessman

See also