Drogheda ([drɔ:də]) or [drɒhədə]) (Droichead Átha in Irish, meaning "Bridge of the Ford") is an industrial and port town in County Louth (on the border with County Meath) on the east coast of Ireland, 56 km north of Dublin. The town is increasingly populated by commuters working in Dublin. In 2006 the population stood at 28,894 and is the 7th largest town in the Republic of Ireland.

Drogheda was a former United Kingdom Parliament constituency, in Ireland, returning one MP. It was an original constituency represented in Parliament when the Union of Great Britain and Ireland took effect on 1 January, 1801.

in 1649 the place was captured by Oliver Cromwell, who massacred the Catholic inhabitants