Seeleg Lester (October 31, 1913 - November 14, 2004) was an American television and film writer.
Lester wrote scripts for television series such as Crusader, The Californians, Bonanza, The Virginian, Hawaii Five-O, Ghost Story, The Invisible Man, Nero Wolfe and Perry Mason. His feature film credits included Change of Mind, The Iron Sheriff and The Winning Team.
He co-wrote four episodes of the original series from 1964 to 1965:
- "Wolf 359" (with Richard Landau)
- "The Inheritors, Part I" (with Sam Neuman and Ed Adamson)
- "The Inheritors, Part II" (with Sam Neuman and Ed Adamson)
- "The Probe" (with Sam Neuman)