Most appearances by a man at World Athletics Championships
- Who
- João Vieira
- What
- 14 total number
- Where
- Japan (Tokyo)
- When
- 12 September 2025
The most appearances at the World Athletics Championships by a male athlete is 14, achieved by João Vieira (Portugal) in the 20 km, 35 km and 50 km race walk between 1999 and 2025.
Race walker João Vieira claimed the outright World Athletics Championships appearance record on 12 September 2025, finishing 20th in the 35 km race walk at the age of 49 in Tokyo, Japan. Vieira’s best championship result was a silver medal in the 50 km race walk in 2019.