| Wallace Ralston Westlake | |
| Office: | 47th Mayor of Columbus |
| Birth Date: | 27 August 1907 |
| Birth Place: | Columbus, Ohio |
| Death Place: | Columbus, Ohio |
| Restingplace: | Green Lawn Cemetery Columbus, Ohio |
| Residence: | 3300 West Broad St. Columbus, Ohio |
| Term Start: | January 1, 1960 |
| Term End: | January 1, 1964 |
| Predecessor: | Jack Sensenbrenner |
| Successor: | Jack Sensenbrenner |
| Party: | Republican |
| Profession: | Mayor Glassware businessman Motel owner City Council Member |
| Spouse: | Helen Elizabeth Siegwald |
| Branch: | United States Army |
| Battles: | World War II |
| Education: | West High School |
Wallace Ralston Westlake (August 27, 1907 – December 9, 1978) was an American politician of the Republican Party from the U.S. state of Ohio. He was the 47th mayor of Columbus, Ohio and the 43rd person to serve in that office. He served one term in office until he lost re-election in the 1963 mayoral election by former mayor Jack Sensenbrenner.
He served in the US Army during World War II, was a member of the Lutheran Church, the Freemasons and the Shriners. He was born in the Hilltop neighborhood in Columbus on South Highland Avenue and lived in that area throughout his life. As an adult, he lived in a two-story home located at 3300 West Broad Street, where he also owned a small motel and glass business for many years. The property was later sold, and the vacant land behind it was converted to self-storage units, and the motel units were converted to small offices. He died on December 9, 1978.