Bellenger may refer to:

• Arthur Bellenger, alias of the fictional character Harold Finch in the TV series Person of Interest
• Étienne Bellenger (fl. 1580–1584), French merchant
• Frederick Bellenger (1894–1968), British surveyor, soldier and politician
• Jacques Bellenger (born 1927), French Olympic cyclist
• Joseph-Marie Bellenger (1788–1856), Catholic priest
• Romain Bellenger (1894–1981), French road racing cyclist

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