Calvin Bassey (né Ughelumba, born 31 December 1999) is a professional footballer who plays as a left-back or a centre-back for Premier League club Fulham. Born in Italy, he plays for the Nigeria national team.

Bassey was a product of Leicester City's youth system but didn't make a senior appearance for the club before joining Rangers on a free transfer in July 2020. He made 65 appearances over two seasons for Rangers and won the Scottish Premiership and the Scottish Cup. In July 2022, he signed for Dutch club Ajax, with Rangers receiving the highest transfer fee in their history. The following July, he signed for English club Fulham.