Albert Leroy "Moose" Marshall (born November 22, 1943) is a Canadian former professional ice hockey defenceman who played in the National Hockey League for the Detroit Red Wings, Oakland Seals/California Golden Seals, New York Rangers and New York Islanders.

In his rookie season with the Detroit Red Wings, his fine play made him a contender for the Calder Memorial Trophy.

Detroit slumped in 1967–68 and traded Marshall, with Ted Hampson, to the Oakland Seals for defenceman Kent Douglas.

The Seals finished second in 1968–69 and fourth in 1969–70 in the West Division of the NHL, and Marshall's fine play was part of the reason.

He developed good shot-blocking ability and his reliable play and leadership helped the Islanders make the Stanley Cup semi-finals in 1975 and 1976.