Mentor is a city in Lake County, Ohio, United States. Mentor was first settled in 1797. The population was 47,159 at the 2010 census. In July 2006, CNNMoney.com ranked Mentor 68th in a list of the Top 100 Best Places to Live in America. Just four years later in July 2010, CNNMoney.com ranked Mentor 37th on the same list.
In 1876 James A. Garfield purchased a home in Mentor, from which he conducted the first successful front porch campaign for the presidency. Garfield coined the term 'Mentorite' when referring to a native of Mentor. That home is now maintained as the James A. Garfield National Historic Site. The city is home to Headlands Beach State Park, the longest natural beach on Lake Erie.
The city is a major center of retail stores and restaurants in the Greater Cleveland area, seventh-largest in Ohio as of 2010. US 20 (Mentor Avenue) is the major retail center, which includes the Great Lakes Mall, with additional shopping and strip malls found along most major roads. Convenient Food Mart is based in Mentor.