Sir Walter Yonge, 2nd Baronet (c. 1625 – 21 November 1670) of Great House, Colyton, and of Mohuns Ottery, both in Devon, was a Member of Parliament for Honiton (1659), for Lyme Regis (1660) and for Dartmouth (1667–70).
Yonge was the son and heir of Sir John Yonge, 1st Baronet (1603–1663), of Colyton by his wife Elizabeth Strode, daughter of Sir William Strode (1562–1637) of Newnham in the parish of Plympton St Mary, Devon, seven times a Member of Parliament, for Devon in 1597 and 1624, for Plympton Erle in 1601, 1604, 1621 and 1625, and for Plymouth in 1614, Sheriff of Devon 1593-4 and Deputy Lieutenant of Devon in 1599.
He was educated in Leyden and the Inner Temple. In 1659 he was elected Member of Parliament for Honiton, Devon, and in 1660 for Lyme Regis, Dorset, in the Convention Parliament. He inherited the baronetcy on the death of his father in 1663. In 1667 he was elected MP for Dartmouth in Devon, and sat until his death in 1670.