Walter Steven Ris (January 4, 1924 – December 25, 1989) was an American competition swimmer, two-time Olympic champion, and world record-holder.

[1] He received his first gold medal as a member of the winning U.S. team in the men's 4×200-meter freestyle relay, and set a new world record of 8:46.0 with American teammates Jimmy McLane, Wally Wolf, and Bill Smith.

The next four-Eugene Rogers in 2:14.2, Edwin Gilbert in 2:15.4, Robert Gibe in 2:15.6, and William Dudley in 2:15.9, were used in the Olympic prelims.

[5] The next three swimmers-Joe Verdeur who came in 2:16.3, Alan Ford in 2;16.4 and George Hoogerhyde in 2:17.4 were not used in any capacity in the 4x200 freestyle relay.

In individual competition, he won a second gold in the men's 100-meter freestyle (57.3), finishing a half-second ahead of U.S. teammate Alan Ford (57.8).