John de Cobham, 2nd Baron Cobham (died 1355) was an English

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 nobleman. He was the second baron of the family of Cobhams of Cobham. He married Joan of Beauchamp, daughter of John Lord Beauchamp; after her death, he married one Agnes Stone of Dartford

Dartford

Dartford is the principal town in the borough of Dartford. It is situated in the northwest corner of Kent, England, east south-east of central London....

.

In 1320 he became Lord Warden of the Cinque Ports

Lord Warden of the Cinque Ports

The Lord Warden of the Cinque Ports is a ceremonial official in the United Kingdom. The post dates from at least the 12th century but may be older. The Lord Warden of the Cinque Ports was originally in charge of the Cinque Ports, a group of five port towns on the southeast coast of England...

 and constable

Constable

A constable is a person holding a particular office, most commonly in law enforcement. The office of constable can vary significantly in different jurisdictions.-Etymology:...

 of Dover Castle

Dover Castle

Dover Castle is a medieval castle in the town of the same name in the English county of Kent. It was founded in the 12th century and has been described as the "Key to England" due to its defensive significance throughout history...

, succeeding his father in both positions. In 1334 he was appointed, along with his father, constable of Rochester Castle

Rochester Castle

Rochester Castle stands on the east bank of the River Medway in Rochester, Kent, England. The 12th-century keep or stone tower, which is the castle's most prominent feature, is one of the best preserved in England or France. Located along the River Medway and Watling Street, Rochester was a...

. The following year he was made Admiral

Admiral

Admiral is the rank, or part of the name of the ranks, of the highest naval officers. It is usually considered a full admiral and above vice admiral and below admiral of the fleet . It is usually abbreviated to "Adm" or "ADM"...

 for the region west of the Thames. After 1350, he served in Parliament

Parliament of England

The Parliament of England was the legislature of the Kingdom of England. In 1066, William of Normandy introduced a feudal system, by which he sought the advice of a council of tenants-in-chief and ecclesiastics before making laws...

 for districts in Kent

Kent

Kent is a county in southeast England, and is one of the home counties. It borders East Sussex, Surrey and Greater London and has a defined boundary with Essex in the middle of the Thames Estuary. The ceremonial county boundaries of Kent include the shire county of Kent and the unitary borough of...

. He died in 1355.