For other meanings, see trim (disambiguation).

Trim (Baile Átha Troim in Irish), is the traditional county town of County Meath in Ireland, although Meath's administrative centre is nowadays Navan. Situated 60 m above sea level on the River Boyne, Trim was one of the most important English settlements in the Middle Ages. In the 15th century the Anglo-Norman parliament met in Trim. The Duke of Wellington was born nearby; a large column remains to this day near the centre of the town as a monument. Trim Castle is a famous historical site and was used as a backdrop in the making of the film Braveheart.

See also: List of towns in the Republic of Ireland