John Nicholas Klohr (July 27, 1869 – February 17, 1956) was a composer of band music.
A graduate of the Cincinnati public schools, Klohr set upon a career in music, especially vaudeville.
He was a vaudeville trombonist by trade, but also performed as a member of Cincinnati's musical life.
He played in the Syrian Temple Shrine Band, led by fellow composer Henry Fillmore.
Klohr died of a heart attack in 1956, and was buried at St. Joseph Cemetery in Cincinnati.