To provide a strain gauge capable of reducing thermally-induced apparent strain caused by a thermal gradient, even when a strain gauge material having particularly high sensitivity and a large resistance temperature coefficient is employed.

A strain gauge 10 is constituted by a main-strain sensing element 11 and sub-strain sensing elements 12 and 13. The direction in which the main-strain sensing element 11 is arranged and the direction in which the pair of sub-strain sensing elements 12 and 13 are arranged are orthogonal to each other. The pair of sub-strain sensing elements 12 and 13 are disposed symmetrically on the left and right sides of the main strain sensing element 11. Consequently, the apparent strain due to heat from directions of the sub-strain sensing elements 12 and 13 on both sides is offset.