Jean Willem "Willy" Steveniers (born 12 December 1938) is a Belgian former professional basketball player and coach.

Standing at 1.80 m (5 ft 11 in) tall, Steveniers played at the shooting guard position.

[4] During his club career, Steveniers played in the Belgian League, with Zaziko Antwerpen, Racing Mechelen, Standard Liege, Eural Goldfingers (Wilrijk), Aalst, Antwerpse, and Royal Fresh Air.

He is the Belgian League's all-time top scorer, with 11,870 career points scored.

With Standard Liege, he made it to the semifinals of the FIBA European Champions Cup (now called EuroLeague), in the 1968–69 season.