Grayer is a surname, and may refer to:
- Jeff Grayer (born 1965), American basketball player
- Jonathan Grayer (21st century), American businessperson
- Wiley Sylvester Grayer (1883-1936), Canadian farmer
| This page or section lists people with the surname Grayer. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link. |