People with the last name Grannan in Michigan
- Cassandra Grannan
- Colleen Grannan
- Dale Grannan
- Dean Grannan
- Denise Grannan
- Dennis Grannan
- Donald Grannan
- Edna Grannan
- Harriet Grannan
- Harry Grannan
- James Grannan
- Janet Grannan
- John Grannan
- Juli Grannan
- Mark Grannan
- Mary Grannan
- Michael Grannan
- Nicholas Grannan
- Phyllis Grannan
- R Grannan
- Richard Grannan
- Robert Grannan
- Ruth Grannan
- Summer Grannan
- Verna Grannan
- Wayne Grannan
- William Grannan
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