Elections to the Second Punjab Legislative Assembly were held in 1957.

661 candidates contested for the 154 seats of the 121 constituencies in the Assembly.

[1] On 1 November 1956, under States Reorganisation Act, 1956, Patiala & East Punjab States Union was merged with Punjab.

[1] Congress was the clear winner in the elections winning 77.92% of the total seats (i.~e.

Partap Singh Kairon from the Congress party became the Chief Minister again.