Nastja Claessens (born 2 December 2004) is a Belgian professional basketball player for IDK Euskotren of the Liga Femenina de Baloncesto.
[2] That year Claessens switched to Castors Braine, but the 2023/24 season turned out to be a disappointment due to a persistent injury to the left wrist, which she sustained in November 2023 during the preparation with the Belgian Cats for the European Championship preliminary round.
In 2022, she was called up to the Belgian women's national basketball team for a European Championship preliminary round match.
On November 22, the power forward conceded North Macedonia her debut with the first team of the Belgian Cats.
In less than eight minutes of playing time, she scored three three-pointers and two free throws; and made two rebounds, two assists and a steal.