Bolshoy Utyash (; , Olo ÃÂtäà Â) is a rural locality (a village) in Zilim-Karanovsky Selsoviet, Gafuriysky District, Bashkortostan, Russia. The population was 172 as of 2010. There are 6 streets.
Bolshoy Utyash is located 48 km north of Krasnousolsky (the district's administrative centre) by road. Zilim-Karanovo is the nearest rural locality.