| Aleck W. McAllister | |
| Order: | 61st[1] |
| Office: | Mayor of Huntsville |
| Term Start: | 1926 |
| Term End: | 1952 |
| Successor: | R.B. "Speck" Searcy |
| Birth Date: | 31 April 1887 |
| Birth Place: | Atlanta, Georgia United States |
| Death Date: | August 22, 1956 (aged 68) |
| Death Place: | San Francisco, California United States |
Aleck Winter "Alex" McAllister (1887–1956) was an American politician who holds the record as the longest-serving mayor of Huntsville, Alabama, having served for 26 years, from 1926 to 1952. He is buried at Maple Hill Cemetery in Huntsville.