| Mark Zatezalo | |
| State Delegate: | West Virginia |
| Term Start1: | December 1, 2020 |
| Predecessor1: | Randy Swartzmiller |
| Term Start2: | December 1, 2014 |
| Term End2: | December 1, 2018 |
| Predecessor2: | Ronnie Jones Randy Swartzmiller |
| Successor2: | Randy Swartzmiller |
| Birth Name: | Mark Peter Zatezalo |
| Birth Date: | 16 March 1952 |
| Birth Place: | Steubenville, Ohio, U.S. |
| Party: | Republican |
| Alma Mater: | West Virginia University (BS) University of Missouri (MS) |
| Office: | Member of the West Virginia House of Delegates |
| Constituency1: | 1st district (2020–2022) 2nd district (2022–present) |
| Constituency2: | 1st district |
Mark Peter Zatezalo (born March 16, 1952) is an American politician who has served in the West Virginia House of Delegates since 2020.[1] A hydrogeologist by training, Zatezalo also served in the House of Delegates from 2014 to 2018.