Carmichaels is a borough in Greene County, Pennsylvania, United States. The population was 434 at the 2020 census, a decline from the figure of 483 tabulated in 2010.

Greene County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 35,954. Its county seat is Waynesburg. Greene County was created on February 9, 1796, from part of Washington County and named for General Nathanael Greene. The county is part of the Southwest Pennsylvania region of the state.