Márcio Roberto dos Santos (born 15 September 1969), commonly known as Márcio Santos, is a former association footballer, who played as a defender.

Santos was born in São Paulo,[1] and played for several clubs throughout his career, such as Internacional, Fiorentina, Ajax and São Paulo as a centre-back.

[1] He won the 1991 Campeonato Gaúcho with Internacional, the 1995–96 Eredivisie with Ajax, and Paulista Championship with São Paulo.

[2] At international level, he was a member of the Brazil national football team that won the 1994 FIFA World Cup, in which he scored one goal[3] in the group stages, against Cameroon.

[4] He missed his penalty in the shootout in the final against Italy, but Brazil went on to win regardless.