Sebastiano Gastaldi (born 12 June 1991 in Piove di Sacco[1]) is an alpine skier from Argentina.

He competed for Argentina at the 2014 Winter Olympics in the slalom and giant slalom.

[2] He competed at the 2018 Winter Olympics in the men's giant slalom.

His sister is also a skier, Nicol Gastaldi.

This biographical article relating to alpine skiing in Argentina is a stub.