John Lauris Blake (March 25, 1831, in Boston, Massachusetts – October 10, 1899, in West Orange, New Jersey) was an American lawyer and Republican Party politician who represented New Jersey's 6th congressional district in the United States House of Representatives for one term from 1879 to 1881.

Blake was born in Boston, Massachusetts, on March 25, 1831.

He studied law, was admitted to the bar in 1852 and commenced practice in Orange.

He was a member of the New Jersey General Assembly in 1857 and was a delegate to the 1876 Republican National Convention.

After leaving Congress, he resumed his law practice in Orange, and became president of the Citizens' Gas Light Co. of Newark, in 1893.