Janusz Wiktor Wichowski (6 October 1935 in Chełm - 31 January 2013 in Valenciennes) was a Polish professional basketball player and coach.

At a height of 1.96 m (6 ft 5 in) tall, and a weight of 88 kg (194 lb), he played at the small forward position.

Wichowski was a member of the FIBA European Selection, in 1964.

As a member of the senior Polish national basketball team, Wichowski competed at the 1960 Summer Olympics, and at the 1964 Summer Olympics.

He also won the silver medal at the EuroBasket 1963, and the bronze medal at the EuroBasket 1965.