A turbine housing that includes: a body part including a scroll passage wall surface, an exhaust gas discharge path wall surface, and a wastegate passage wall surface provided inside the body part, the scroll passage wall surface forming a scroll passage having a scroll shape, the wastegate passage wall surface forming a wastegate passage connecting the scroll passage and the exhaust gas discharge path to each other while bypassing the turbine wheel; and an entrance flange part provided at an upstream end of the scroll passage in the body part, the entrance flange part including an exhaust gas inlet leading to the scroll passage. The wastegate passage has an entrance-side opening edge formed at the scroll passage wall surface and provided at a position where the entrance-side opening edge is visually recognizable at least partially from outside the turbine housing through the exhaust gas inlet.