Mark Astley (born March 30, 1969) is a Canadian former professional ice hockey defenceman. He was drafted by the Buffalo Sabres in the tenth round, 194th overall, of the 1989 NHL Entry Draft. He retired at the end of the 2006–2007 season.
In his NHL career, Astley played in 75 games, all for Buffalo. He scored four goals and had nineteen assists.
Astley won a silver medal playing for Canada in the 1994 Winter Olympics.