An apparatus for estimating a travel path of a vehicle is mounted on the vehicle; and includes: an object detection device that detects an object lying ahead of the vehicle; a stationary object detection device that determines whether a detected object is a stationary object; a device that calculates an approximate straight line indicating a path of the stationary object from the temporal positional data for the stationary object projected on two-dimensional coordinates using a vehicle position as a starting point; a device that calculates a orthogonal line which passes through a midpoint in the temporal positional data for the stationary object and goes straight with respect to the approximate straight line on the two-dimensional coordinates; and a device that calculates a vehicle turning radius from an intersection point where the orthogonal line intersects with a x axis.