Marcelo Alejandro Otero Larzábal (born 14 April 1971 in Montevideo) is a retired Uruguayan footballer who played as a striker.
He was nicknamed "Marujo" during his career, and is the younger brother of former midfielder Raul Otero.
Otero played in Uruguay for Rampla Juniors and Peñarol, in Italy for Vicenza, and in Spain for Sevilla.
Whilst at Vicenza he won the 1996–97 Coppa Italia.