- Isaac Johnson
- 10.175 centimetre(s)
- United States (Bloomington)
The largest gape belongs to Isaac Johnson (USA) and measures 10.175 cm (4 in) as verified in Bloomington, Minnesota, USA, as verified on 21 October 2020.
Isaac previously held this record and was thrilled to discover his gape had grown enough to reclaim the title.
Largest mouth gape (male): 10.175 cm / 4 in by Isaac Johnson 🇺🇸