Ignacio de Arruabarrena Fernández (born 16 January 1997) is a Uruguayan professional footballer who plays as a goalkeeper for Primeira Liga club Arouca.
De Arruabarrena started his senior career at Montevideo Wanderers in 2017, and was loaned out to Tacuarembó in 2018.
In May 2022, De Arruabarrena joined Primeira Liga club Arouca.
In July 2024, he signed for Saudi side Al Wehda.
On 13 February 2025, De Arruabarrena moved to Ecuador, joining LigaPro Serie A club Barcelona SC on a two-year contract.
On 13 January 2026, he returned to Arouca, signing a contract until the end of the 2025âÂÂ26 season, with an option for a further year.
De Arruabarrena is a former Uruguay youth international. In December 2019, he was named in Uruguay's squad for the 2020 CONMEBOL Pre-Olympic Tournament.