Walter Piatkowski, Jr. (born June 11, 1945) is a retired American professional basketball player.
A 6'8" forward, Piatkowski began his career at Toledo Woodward High School then starred at Bowling Green State University, where he was a Converse Honorable Mention All-American in 1968. He then played in the American Basketball Association from 1968 to 1970 as a member of the Denver Rockets. He received ABA All-Rookie Team honors with the Rockets in 1969 after averaging 12.2 points per game. When the Rockets acquired Spencer Haywood the next season, Piatkowski saw his playing time drop, and in 1970, he briefly retired to work as a teacher. He returned to the ABA in the fall of 1971 as a member of The Floridians, but he was waived just a month into that season. He later became a salesman with a paper company. He is Polish American.
Piatkowski's son Eric Piatkowski played basketball at the University of Nebraska, and was drafted into the NBA in 1994.