A pressure sensor (10, 110, 210, 310) comprising: a membrane generating a deformation in response to pressure; and a detection circuit (32, 132) including: a first resistor (R1, R11) and a third resistor (R3, R13) arranged in a first strain region generating a strain characteristic in a predetermined direction on the membrane; a second resistor (R2, R12) and a fourth resistor (R4, R14) arranged in a second strain region generating a strain characteristic in the opposite direction to that of the first strain region on the membrane; and a bridge circuit (32, 132) formed by the first resistor to the fourth resistor, wherein each of the first resistor, the second resistor, the third resistor, and the fourth resistor includes: a first portion (R1a, R2a, R3a, R4a) as a resistance having a positive temperature resistance coefficient; and a second portion (R1b, R11b, R2b, R12b, R3b, R13b, R4b, R14b) as a resistance connected to the first portion in series and having a negative temperature resistance coefficient, and characterized in that the first portion of the first resistor (R1a) and the first portion of the third resistor (R3a) are arranged on a first circumference included in the first strain region, the second portion of the first resistor (R1b) and the second portion of the third resistor (R3b) are arranged on a third circumference included in the first strain region and being different from the first circumference, the first portion of the second resistor (R2a) and the first portion of the fourth resistor (R4a) are arranged on a second circumference included in the second strain region, and the second portion of the second resistor (R2b) and the second portion of the fourth resistor (R4b) are arranged on a fourth circumference included in the second strain region and being different from the second circumference or the first portion of the first resistor (R1a), the first portion of the third resistor (R3a), the second portion of the first resistor (R11b), and the second portion of the third resistor (R13b) are arranged on a first circumference included in the first strain region, and the first portion of the second resistor (R2a), the first portion of the fourth resistor (R4a), the second portion of the second resistor (R12b), and the second portion of the fourth resistor (R14b) are arranged on a second circumference included in the second strain region, the second circumference being concentric with the first circumference. a membrane generating a deformation in response to pressure; and a detection circuit (32, 132) including: a first resistor (R1, R11) and a third resistor (R3, R13) arranged in a first strain region generating a strain characteristic in a predetermined direction on the membrane; a second resistor (R2, R12) and a fourth resistor (R4, R14) arranged in a second strain region generating a strain characteristic in the opposite direction to that of the first strain region on the membrane; and a bridge circuit (32, 132) formed by the first resistor to the fourth resistor, a first resistor (R1, R11) and a third resistor (R3, R13) arranged in a first strain region generating a strain characteristic in a predetermined direction on the membrane; a second resistor (R2, R12) and a fourth resistor (R4, R14) arranged in a second strain region generating a strain characteristic in the opposite direction to that of the first strain region on the membrane; and a bridge circuit (32, 132) formed by the first resistor to the fourth resistor, a first portion (R1a, R2a, R3a, R4a) as a resistance having a positive temperature resistance coefficient; and a second portion (R1b, R11b, R2b, R12b, R3b, R13b, R4b, R14b) as a resistance connected to the first portion in series and having a negative temperature resistance coefficient, and characterized in that the first portion of the first resistor (R1a) and the first portion of the third resistor (R3a) are arranged on a first circumference included in the first strain region, the second portion of the first resistor (R1b) and the second portion of the third resistor (R3b) are arranged on a third circumference included in the first strain region and being different from the first circumference, the first portion of the second resistor (R2a) and the first portion of the fourth resistor (R4a) are arranged on a second circumference included in the second strain region, and the second portion of the second resistor (R2b) and the second portion of the fourth resistor (R4b) are arranged on a fourth circumference included in the second strain region and being different from the second circumference or the first portion of the first resistor (R1a), the first portion of the third resistor (R3a), the second portion of the first resistor (R11b), and the second portion of the third resistor (R13b) are arranged on a first circumference included in the first strain region, and the first portion of the second resistor (R2a), the first portion of the fourth resistor (R4a), the second portion of the second resistor (R12b), and the second portion of the fourth resistor (R14b) are arranged on a second circumference included in the second strain region, the second circumference being concentric with the first circumference.