John Long
John or Johnny Long may refer to:
Music
- John Long , American country blues singer, fingerstyle guitarist, harmonica player and songwriter
- Johnny Long , American violinist and big band leader
- John Herbert Long, English music teacher and organist
Politics
- John Long , English Member of Parliament for Cricklade
- John Long , MP for Knaresborough, Hedon, Shaftesbury and Newcastle-under-Lyme
- John Long , U.S. representative from North Carolina
- John Davis Long, governor of Massachusetts, later the U.S. Secretary of the Navy
- John B. Long, U.S. representative from Texas
- John Andrew Long, senator in Northern Ireland
- John David Long, South Carolina state senator
- John H. Long , Canadian political figure
- J. H. Long, American politician
- John V. Long, member of the Utah territorial legislature and clerk for Brigham Young
Science
- John Long , British computer scientist
- John A. Long, Australian paleontologist and author of children's books and popular science and adventure books
- John H. Long , president of the American Chemical Society
Sports
- John Long , American rock climber and writer
- John Long , American basketball player
- Johnny Long , American football quarterback
- John Long, college men's basketball coach
- John Long , Australian rules footballer
- John Long , Irish Gaelic footballer
Other fields
- John Long , artist and painter from Northern Ireland
- John Long , Pentecostal preacher
- John Long , Anglican Archdeacon of Ely
- John Dixon Long, American abolitionist
- John Luther Long, American lawyer and writer whose short story "Madame Butterfly" inspired the opera by Puccini
- John Long, founder of John Long Ltd, a now-defunct publishing firm based in London