Cairnes, John a Scotch clergyman, held meetings in Edinburgh in support of the Protestant faith in 1555, and was a reader there in 1561. He was admitted to the ministry by the assembly in 1566, and was the fourth minister in the city in 1568. He was banished and put in exile for a time, but his stipend was continued, and was increased in 1586, and again in 1588 and 1590. He was for some time clerk to the session, and died in 1595. See Fasti Eccles. Scoticance, i, 6.