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8 of the Best Annual Events & Festivals in Oak Ridge, TN

Looking for the best things to do in Oak Ridge, TN? From the Lavender Festival to the Secret City Half Marathon, discover the top annual events you can't miss.
By Kelly Rogers on June 9, 2026
Woman and baby at a farmers market
Shawn Milsaps

If you are looking for the best things to do in Oak Ridge, TN, this historic “Secret City” boasts a vibrant year-round lineup of community gatherings. From rich cultural celebrations and local farmers markets to festivals that honor the city’s unique scientific heritage, there is always something happening.

Whether you are a local resident planning your weekend or a visitor exploring East Tennessee, be sure to add these 8 annual Oak Ridge events and festivals to your calendar.

Top Spring & Summer Events in Oak Ridge

1. Flatwater Tales Storytelling Festival

  • When: First weekend in June
  • Where: Historic Grove Theater

As one of the premier cultural Oak Ridge TN events, the Flatwater Tales Storytelling Festival brings history and imagination to life. Nationally recognized storytellers gather at the Historic Grove Theater to perform a captivating mix of folk tales, deeply personal narratives, and historical stories that appeal to all generations.

2. Lavender Festival

  • When: Third weekend in June
  • Where: Jackson Square

As the city’s longest-running festival, the Oak Ridge Lavender Festival is easily one of the most popular summer events in the East Tennessee region. Timed perfectly with the peak bloom of lavender, this celebration features regional artisans, live music, cooking demonstrations, and educational speakers focused on herbs, gardening, and sustainable living.

3. Farmers Market at Jackson Square

  • When: Saturdays (Spring through Fall)
  • Where: Historic Jackson Square

When the weather warms up, the Farmers Market at Jackson Square becomes the ultimate weekend destination for locals. This open-air market is packed with vendors offering fresh, locally grown seasonal produce, raw honey, homemade jams, and unique artisan crafts.

Best Oak Ridge Fall Festivals & Races

4. Atomic Fall Festival

  • When: Late September
  • Where: A.K. Bissell Park

A true staple of the community, the Atomic Fall Festival pays homage to the city’s historic contributions to the Manhattan Project. Held in the heart of A.K. Bissell Park, this family-friendly fall festival features live music concerts, local arts and crafts vendors, a massive lineup of food trucks, a classic car show, and plenty of children’s activities.

5. Nuclear Science Week

  • When: October
  • Where: Various Oak Ridge locations

Honoring the breakthrough scientific research and nuclear innovation that defined the Secret City’s roots, Nuclear Science Week is a weeklong, interactive event. Perfect for students and tech enthusiasts, it offers hands-on STEM demonstrations. Recent highlights include the “Be Proud” mobile workshop trailer, which features gamified virtual reality experiences.

6. Secret City Half Marathon and 5K

  • When: November
  • Where: Oak Ridge Greenways & Neighborhoods

Lace up your running shoes for the Secret City Half Marathon and 5K. This popular autumn race winds through Oak Ridge’s most scenic neighborhoods and beautiful greenways. Serving as a massive community fundraiser, it’s a fantastic event for the whole family—whether you are aiming for a personal record or cheering on the runners from the sidelines.

Fun Winter Activities & Charity Events

7. Cars for Canines

  • When: Varies (Check local listings)
  • Where: Oak Ridge, TN

Where classic car enthusiasts and animal lovers meet, you will find Cars for Canines. This unique car show doubles as a fundraiser, with all proceeds directly benefiting local animal shelters and rescue organizations. Attendees can get up close with stunning displays of classic, vintage, and custom cars, trucks, and motorcycles.

8. Winter Farmers Market

  • When: Saturdays, 9:00 a.m. – 12:00 p.m. (December through March)
  • Where: Roane State Community College

Just because the temperature drops doesn’t mean the fresh food stops. The Oak Ridge Winter Farmers Market moves indoors to keep the community connected with local producers and artisans during the colder months. It is the perfect cozy Saturday morning escape to stock up on winter produce, baked goods, and handmade items.

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