Harty is a small hamlet in the civil parish of Leysdown, on the Isle of Sheppey, in the Swale district, in the county of Kent, England.

It consists of a few cottages, a church and a public house, the Ferry Inn (a Grade II listed building[1]).

In 1798 Edward Hasted recorded that an earlier form of the name was 'Harteigh' which he presumes came from the Saxon Heord-tu, an island "filled with herds of cattle".

[11] An attempt to start a small hovercraft service between the Harty Ferry Inn and Oare Creek in 1970 by the then landlord, Ben Fowler, failed after a few days.

Hasted (1798) records: ... that there was formerly a bridge leading from hence [Harty] into Shepey, then called Tremseth bridge, which had been broken down by a violent inundation of the sea, and the channel thereby made so deep, that a new one could not be laid; and therefore the inhabitants of Shepey, who before repaired it, maintained in the room of it two ferry-boats, to carry passengers to and fro.

A hundred years later (in 1893) during floods the fleet grew to be 100 yards (91 m) wide but today is cut off from Windmill Creek by a causeway.

[8] Author Russell Hoban repurposes the Isle of Harty as "Harts Ease" in his 1980, post apocalyptic novel Riddley Walker.