Lilliput is a fictional island supposed to be in Lough Ennell in Co. Westmeath...
No, Lilliput exists. It's the area at the southwestern point of the lake, where the River Brosna exits. Jonathan Swift
(Gulliver's Travels) had a country house there in 1726, hence the name.
Lough Ennell at Lilliput | Flickr - Photo Sharing!