Alexander Blockx

Nationality

Belgium

Born

2005-04-08

Height

191 cm (6 ft 3 in)

Number

#121

Alexander Blockx (born 8 April 2005) is a Belgian professional tennis player. He has a career-high ATP singles ranking of world No. 116, achieved on 18 August 2025 and a doubles ranking of No. 634, achieved on 24 February 2025. He is currently the No. 4 singles player from Belgium.