The Blackwell Baronetcy, of Sprowston in the County of Norfolk, was a title in the Baronetage of Great Britain.
The baronetcy was created on 16 July 1718 for Sir Lambert Blackwell, Kt of Sprowston Hall near Norwich, Norfolk.[1] Descended from the Blackwells of Surrey, he was a younger son of John Blackwell of Mortlake. He was Knight Harbinger and Gentleman of the Privy Chamber to William III by whom he was knighted in 1697. He was a director of the South Sea Company and Member of Parliament for Wilton 1708-10. The baronetcy became extinct on the death of his grandson, the third Baronet, in 1801.