Othenin (died 1338), called the Mad, was a Count of Montbéliard.
The only son of Reginald of Burgundy and his wife, Guillemette of Neufchâtel, Othenin could not intervene in the affairs of the county because of his mental problems.
He was betrothed to Jeanne, the sister of Jean of Chalone-Auxerre, in 1305 as part of a peace treaty.
Henry I of Mountfacon was named his successor by the Holy Roman Emperor Louis IV.
This biography of a French peer or noble is a stub.