Nicholas Antero Hämäläinen (born 5 March 1997) is a Finnish-American footballer who plays as a midfielder or a defender for Kilmarnock, on loan from Queens Park Rangers.
Born and raised in the USA to a Finnish father, Hämäläinen played for Finland at various youth levels, and was capped at senior level in a friendly match against Estonia on 11 January 2019.
However, on 30 August 2019, he was named to the United States under-23s, his first call-up to his native United States at any level.