L. Ron (or L Ron) may refer to:
In people:
- L. Ron Hubbard, (1911-1986), founder of Scientology
- L. Ron Hubbard, Jr., (1934-1991), son of L. Ron Hubbard
In music:
- L. Ron (album), a noise rock album by Barkmarket
In comics:
- L-Ron, fictional DC Comics character