Ronald James Klimko (December 13, 1936 – March 18, 2012) was an American bassoonist, author, composer, teacher, and performer. He was editor of The Double Reed, the publication of the International Double Reed Society, for thirty years (1982–2012) and a professor of music at Lionel Hampton School of Music, University of Idaho, for thirty-two years (1968–2000). The Ronald J. Klimko Memorial Endowed Scholarship was established by his colleagues and friends and gives scholarships to music students at the University of Idaho.