Kildysart, officially Killadysert (from Irish: Cill an Dísirt, meaning "church of the wilderness"), is a village in County Clare, Ireland and a civil and Roman Catholic parish by the same name that surrounds the village.  The village of Kildysart is on the north bank of the Shannon Estuary on the R473 coastal route between Ennis and Kilrush, and is located on the picturesque Estuary Way.  [Eir Code V95 R24R]

The parish contains the following townlands: Ballylean, Ballynacragga, Ballyvohane, Blean, Booltydoolan, Cahiracon, Canon Island, Cappanavarnoge, Cloonkett, Cloonsnaghta, Cloonulla, Coney Island, Cooga, Coolteengowan, Craghera, Crossderry, Crovraghan, Derrylea,Effernan, Glenconaun Beg, Glenconaun More, Gortnacurra, Gortnahaha, Gortnavreaghaun, Inishcorker, Inishloe, Inichmacowney, Inishtubbrid, Killadysert, Lackannashinnagh, Liscormac, Lisnafaha, Lissyvurriheen, Rusheen and Shannacool.

Kildysart has two minimarkets, hardware shop, a mobile bank, pharmacist, doctor's surgery, veterinary clinic, credit union, community centre, four pubs and the quay Marina. It's parish church is St Michael's and it's home to Kildysart National School & Saint John Bosco Community College.

Kildysart is known for its fishing, both in the estuary and in the local lakes. Gortglass, Clonshnacta and Effernan, close to the village, are trout fishing lakes only. Only members of the local angling club are allowed to fish in them. Visitors can charter a boat for fishing in the Shannon Estuary or for trips to the islands. The estuary holds fish such as conger, skate, dogfish, pollock, flounder, tope and Thorn Back Ray, all of which can also be caught off Cahercon Pier, which is open to the public and is about 1.6 km from Kildysart.

Kildysart GAA Club, located just south of the village in the townland of Ballynacragga was formed in 1886 and has earned many honours over the years.  In 2013, the club adopted the One Club Model when it integrated the Ladies Football with the main club.