Peter Cole Knisely (August 11, 1887 – July 1, 1948) was a professional baseball player. He was an outfielder over parts of four seasons (1912–15) with the Cincinnati Reds and Chicago Cubs. For his career, he compiled a .235 batting average in 272 at-bats, with 29 runs batted in.
He was born in Waynesburg, Pennsylvania and died in Brownsville, Pennsylvania at the age of 60.