Mihalgazi is a municipality and district located in the Eskişehir Province of Turkey. Situated at an elevation of 210 meters (689 feet), the town lies along the Sakarya River, approximately 35 kilometers north of the city of Eskişehir.
The district covers an area of 109 square kilometers and had a population of 2,987 as of 2022. It is bordered by the districts of İnhisar to the west, Yenipazar to the northwest, Sarıcakaya to the east, and Tepebaşı to the south.
One notable geographic feature of the region is the presence of hot springs located in Sakarıılıca.