Nicolás Andereggen (born 22 September 1999) is an Argentine professional footballer who plays as a forward for Ethnikos Achna.

[3] Andereggen got his debut for Union at the age of only 16 on 7 November 2015, which made him the youngest player ever to play in the Argentine Primera División at the time.

[4] On 15 January 2019, Unión Santa Fe loaned out Andereggen to Swiss club FC Zürich until the end of 2019 with an option to sign him on a permanent deal.

[2] He spent majority of his loan with Zürich's Under-21 team which plays in the third-tier Swiss Promotion League.

Andereggen is of Swiss descent, and holds a Swiss passport.