Keith Walter Wilson Ewert (12 April 1918 – 2 December 1989) was an Australian politician.

In 1952, Ewert was elected to the Australian House of Representatives as the Labor member for Flinders, unexpectedly winning the by-election for that seat caused by the death of Rupert Ryan, becoming only the second Labor MP for Flinders.

In 1955, 1958 and 1961, Ewert was the Labor candidate for the nearby seat of Bruce, losing each time to Liberal Billy Snedden.

On the third attempt, Ewert actually led in the first count, but was defeated by DLP preferences.

This article about an Australian Labor Party member of the House of Representatives is a stub.