Michael C. Thomas (born 1948) is an American entomologist who is co-author of the book series American Beetles.
Born in Miami, Florida, Thomas graduated from the University of South Florida in 1970 with a Bachelor of Arts degree in fine arts, followed by a Master of Science degree in Entomology from the University of Florida in 1981. Thomas has also received his Ph.D. from the University of Florida.
From 1986 to 1988, Thomas worked as a Taxonomic Entomologist for the West Virginia Department of Agriculture.
Since 1988, Thomas has worked for the Florida Department of Agriculture and Consumer Services in Gainesville as a Taxonomic Entomologist, an Entomology Section Administrator, and a Curator of Coleoptera and Orthoptera. His research interests include the biology and systematics of Cucujidae, and the zoogeography of the Coleoptera of Florida.