Sir Charles Le Grosse (c.1596 – 1650) of Crostwight Hall near North Walsham in Norfolk, England, was a politician who sat in the House of Commons at various times between 1628 and 1653.

Le Grosse was the son of Sir Thomas Le Grosse / Le Gros (died 1613) of Crostwight and of Sloley, both in Norfolk, by his wife Elizabeth Cornwallis, a daughter of Sir Charles Cornwallis, of Brome, Suffolk, MP.^[1] The Le Grosse family probably descended from William Gross of Norfolk, a land-holder mentioned in the Domesday Book of 1086.^[1][2] The chest tomb of Oliver le Gros (died 1435) survives in St Bartholomew's Church, Sloley,^[3] displaying the arms of Le Gross: Quarterly argent and azure, on a bend sable three martlets or,^[4] which also survive on the "Crostwight Flagon", a silver wine flagon made in 1585 by Peterson of Norwich, presented to Crostwight Church probably by Thomas Le Gross, now in Norwich Castle Museum.^[5]

He was knighted on 6 December 1616^[6] and served as Sheriff of Norfolk for 1626–27. In 1628 he was elected as a Member of Parliament for Orford in Suffolk, and sat until 1629 when King Charles I decided to rule without parliament for eleven years.^[7] In April 1640, Le Grosse was re-elected MP for Orford in the Short Parliament and was re-elected MP for Orford for the Long Parliament in November 1640, retaining his seat until 1653.^[7] In 1637, together with Dr. Thomas Lushington, he was instrumental in persuading the physician and philosopher Thomas Browne, to re-locate to Norwich.^[8] In 1658 Browne dedicated his Hydriotaphia, Urn Burial to Thomas Le Grosse, his eldest son. Le Grosse died before 31 May 1660.

He married Muriel Knyvet, a daughter of Sir Thomas Knyvet (died 1605) by his wife Elizabeth,^[9] and by the marriage settlement he acquired a moiety of the manor of Eccles, which allowed him to hold courts there.^[9] By his wife he had two sons and six daughters,^[10] including:

• Thomas Le Grosse, eldest son and heir.

The poet Ralph Knevet dedicated the following poem to him:^[11]

The King of Pyrrhus shewd the Muses nine
And Phoebus portraited by sculpture fine:
But thou faire Knight-hoods fairer ornament
Conspicuously dost to our eyes present
Phoebus, the Muses nine, the Graces three,
Mercurie, and Mars, yea more Gods then bee
In Homers Iliads; or at least much greater:
For thy mind's a Pantheon, or a Theater,
Wherein all vertues, and all graces stand,
In decent order link'd, with hand in hand.
The[e] 'mongst the chiefest of the Arts few friends
I list: and so adore thy noble ends,
That if my Quill to vertue can life give,
Thy honourd fame shall Nestors age outlive.