People with the last name Gruel in Michigan
- Alex Gruel
- Andy Gruel
- Brandon Gruel
- Curt Gruel
- Danielle Gruel
- Fred Gruel
- Frederick Gruel
- Frieda Gruel
- George Gruel
- Grant Gruel
- Gruel Gruel
- Helen Gruel
- James Gruel
- Jan Gruel
- John Gruel
- Keith Gruel
- Kenneth Gruel
- Kimberly Gruel
- Mabel Gruel
- Margaret Gruel
- Mary Gruel
- Patricia Gruel
- Penny Gruel
- Susan Gruel
- Thelma Gruel
- Tom Gruel
- Warren Gruel
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