Sir Robert Jermyn Doctor of Laws was an English politician who sat in the House of Commons at various times between 1584 and 1589.
Jermyn was the eldest surviving son of Sir Ambrose Jermyn and his first wife Anne Heveningham, daughter of George Heveningham.
He may have been a student of Corpus Christi College, Cambridge in 1550. He was admitted to the Middle Temple in 1561. In 1577 he succeeded to his father"s Suffolk estates and seat at Rushbrooke Hall, Suffolk"s largest moated Tudor mansion.
Around this time he was brought onto the commission of the peace.
He was knighted by Queen Elizabeth I in 1578 and hosted the Queen at Rushbrooke during her visit to Suffolk the same year. He was appointed High Sheriff of Suffolk for 1579.
He then served as Member of Parliament for East Looe from 1588 to 1589. He was also a deputy lieutenant and Custos Rotulorum of Suffolk from before 1594 to 1614.
Jermyn died in 1614 and was buried at Rushbrooke.
During this enforced absence he served as the junior Member of Parliament (Member of Parliament) for Suffolk in the parliament of 1584 and as the senior Member of Parliament in 1586.