Portrait of Princess Sophia is an 1824 portrait painting by the English artist Thomas Lawrence depicting Princess Sophia, one of the younger daughters of George III.

The work was commissioned by George IV and portrayed the king's favourite sister.

He paid Lawrence three hundred guineas for the painting, also commissioning a portrait of her elder sister Princess Mary.

[2] Lawrence shows Sophia in a vivid red dress with her jewellery prominently showcased.

It is hung in the Green Drawing Room of Windsor Castle.