Daniel Blagrave (1603–1668) was a prominent resident of the town of Reading, in the English county of Berkshire.
He was Member of Parliament for the Parliamentary Borough of Reading over several periods between 1640 and 1660, and was also one of the signatories of King Charles I's death warrant.
In 1643 he permitted the Earl of Essex to use the manor as the Roundhead headquarters during the Siege of Reading.
During the Commonwealth, Daniel Blagrave held various commissions and posts, and is said to have become a very wealthy man as a consequence.
On the restoration of King Charles II, Daniel Blagrave fled the country and settled at Aachen, in what is now Germany, where he died in 1668.