Nicolás Mauricio Zalazar (born 29 January 1997) is an Argentine professional footballer who plays as a centre-back for Instituto, on loan from Colombian club Junior.

[1] Zalazar was promoted into San Lorenzo's first-team squad under manager Diego Aguirre during the 2016–17 Argentine Primera División campaign, making his debut against Newell's Old Boys on 30 October 2016.

[1][2] He subsequently made four further appearances in his opening season.

[1][3] In July 2018, Zalazar joined Atlético de Rafaela of Primera B Nacional on loan.

[1] Zalazar won four caps for the Argentina U20 team at the 2017 South American Youth Football Championship, the first of which arrived versus eventual winners Uruguay on 21 January.