Sir Alexander Temple (bapt. 9 February 1582 OS (1583 NS) – 1629) was an English landowner and Member of Parliament. He was born at Stowe House in 1583 and knighted in 1603. During his life he held many public offices, including justice of the peace and MP for Sussex. He was buried in Rochester Cathedral where there was a memorial to him which is now lost.

Temple was born at Stowe House, the fourth son of John Temple and Susan Spencer) and was baptised on 9 February 1582 OS. He was the brother of Sir Thomas Temple and the brother-in-law of Viscount Saye and Sele.

In 1602 he married Mary Penistone (née Sommer or Somers, a daughter of John Somers), of Rochester Kent. They had three children:

As a result of this marriage, Temple gained four step children including Sir Thomas Penistone

Temple was knighted at the Tower of London by James I following the King's accession to the English throne – one of many members of the gentry who were knighted during the first years of the King's reign.

Following the death of his first wife, Sir Alexander moved to Chadwell St Mary in Essex where he established a deer park. At this time, his portrait was painted by Cornelius Johnson - one of a number of Temple family portraits in the Lenthall picture collection.

In the early 1620s, he married Mary Bankworth (who was previously married to John Busbridge), and moved to Haremere Hall in Etchingham, Sussex.

Temple died in 1629 and was buried in Rochester Cathedral.