Harold "Hal" Leighton Weller (born July 6, 1941) is an American conductor and music educator. Weller was born in Dayton, Ohio and graduated from Belmont High School in 1959. He earned degrees from Miami University and Ohio State University in Trumpet and Music History with additional studies at the National Music Camp (Interlochen, Michigan), Oberlin Conservatory of Music and Cincinnati Conservatory of Music.