Loudest billboard
- Who
- NASCAR
- What
- 133.7 decibel(s) (C-weighted)
- Where
- United States (New York)
- When
- 10 February 2026
The loudest billboard is 133.7 dBC, and was achieved by NASCAR (USA) in New York, New York, USA, on 10 February 2026.
The attempt took place at Times Square in Manhattan to promote the 2026 Daytona 500. NASCAR driver Ross Chastain was present to operate the billboard and celebrate with his signature watermelon smash.