Marsters is a variant of the more familiar Masters (surname).
It may refer to:
- Bill Marsters, first president of the Cook Islands Christian Church
- Charles E. Marsters, American lacrosse player and proponent
- James Marsters, American actor and musician
- James C. Marsters, American deaf orthodontist who helped invent the first teletypewriter
- Nathaniel Marsters, farmer, magistrate and political figure in Nova Scotia
- Tom Marsters, Cook Islands politician
- William Marsters, English adventurer who settled on Palmerston Island, Cook Islands