Bolshiye Toktashi (; ; ) is a rural locality (a village) in Alikovsky District of the Chuvash Republic, Russia, located southwest of the district's administrative center of Alikovo.
The majority of the village population is Chuvash. Village facilities include a club, a library, a first-aid post, a shop, and Ilya Toktash Literature Museum.
The Khirlep River flows in the vicinity of the village.
The climate in the village is moderately continental, with long cold winters and warm summers. Average January temperature is ; average July temperatureâÂÂ. The absolute minimum recorded in the village is , and the absolute maximumâÂÂ. Annual precipitation is up to .
The Chuvash word mÃÂn means 'big', while Toktash is a proper name.