CMA Fest in Nashville is the biggest widely recognized country music festival this summer 2026, and it ran June 4–7 with a huge multi-stage lineup and the “Music Event of Summer” branding.

Other big summer picks

  • Barefoot Country Music Fest in Wildwood, New Jersey, is another major one, held June 18–21, 2026, with more than 40 artists.
  • Hoofbeat Country Fest in Wisconsin runs June 25–27, 2026, and is one of the largest camping-country festivals.
  • Windy City Smokeout in Chicago runs July 8–12, 2026, and mixes a big country lineup with BBQ and festival extras.

Quick scoop

If you mean the single biggest mainstream country gathering, CMA Fest is the safest answer for summer 2026. If you mean the biggest beach or camping-style festival, Barefoot and Hoofbeat are both strong contenders.

What stands out

  • CMA Fest: the most established, national-scale country event.
  • Barefoot: huge East Coast beach festival.
  • Hoofbeat: major camping festival with a long-running reputation.
  • Windy City Smokeout: one of the biggest Midwest country weekends.

Would you like the answer narrowed to the biggest U.S. festival, biggest beach festival, or biggest festival still coming later this summer?