Editing Jeffrey Sinclair (section)

{{Infobox character
| name = Jeffrey Sinclair
| series = [[Babylon 5]]
| image = B5 sinclair.jpg
| caption = 
| first = ''[[Babylon 5: In the Beginning]]'' (chronological) (last airdate), ''[[Babylon 5: The Gathering|The Gathering]]'' (airdate)
| last = ''[[Babylon 5: The Road Home]]''
| portrayer = [[Michael O'Hare]]
| voice = Paul Guyet
(''Babylon 5: The Road Home'')
| species = [[Human (Babylon 5)|Human]]
| position = Commander (Season 1), Ambassador to Minbar
| lbl21 = Home planet
| data21 = [[Mars]]
| lbl22 = Affiliated with
| data22 = [[Earth Alliance (Babylon 5)|Earth Alliance]], Rangers
}}
'''Jeffrey Sinclair''' is a fictional character on the [[space opera]] television series titled ''[[Babylon 5]]''. He is the original Commander of the [[Babylon 5 (space station)|Babylon 5 space station]].

Portrayed by [[Michael O'Hare]], the character appeared regularly on the first season of the show and made a number of guest appearances early in season two ("[[The Coming of Shadows]]") and returned in season three for a two-part episode ("[[War Without End (Babylon 5)|War Without End]]").

In the second season, Sinclair was succeeded as space station Commander by [[John Sheridan (Babylon 5)|John J. Sheridan]] (portrayed by [[Bruce Boxleitner]].)