Mercer County Community College (MCCC or Mercer) is a public community college in Mercer County, in the U.S. state of New Jersey. It offers various associate degree programs as well as online, general education, and English as a second language courses. The college operates campuses in the cities of West Windsor and Trenton, and enrolls approximately 9,000 students.

Mercer County Community College maintains an open admission policy. Its 292-acre (118 ha) West Windsor Campus opened in 1972, while the James Kerney Campus in downtown Trenton offers programming to the city's population. It also operates the Mercer County Fire Academy at the Dempster Fire Training Center in Lawrenceville. The college's associate degree programs include transfer-focused two-year programs as well as career-preparatory programs. Special programs include the DREAM Program for inclusive special-needs education and the college's honors program.