McEwen is a city in Humphreys County, Tennessee, United States.

Tennessee State Route 231 (Main Street) leads north 18 miles (29 km) to Erin.

[5] As of the 2020 United States census, there were 1,643 people, 605 households, and 405 families residing in the city.

30.5% of all households were made up of individuals, and 14.3% had someone living alone who was 65 years of age or older.

McEwen is the home of the Irish Picnic, a fundraiser for the local St. Patrick Church and School.