Kızılhisar, is a neighbourhood in the municipality and district of Yenişehir, Bursa Province in Turkey.

On religious or public holidays, young girls in the village gather around the old oak tree, whose age is estimated to be around 500, and celebrate by singing songs.

Tarhana, fried meat and popara can be considered as the noted foods of the village.

In the high hills of the village, a glimpse of Lake Iznik can be caught.

Mainly, onion, beans, tomato, pepper, wheat, barley, plum, peach, melon, watermelon and grapes are cultivated in the village.