County Limerick (Irish: Contae Luimnigh) is a county in Ireland. It is located in the province of Munster, and is also part of the Mid-West Region. It is named after the city of Limerick. Limerick City and County Council is the local council for the county.
Limerick is the eighth most populous county in the Republic of Ireland and the third most populous local council area. It is the fifth largest of Munster's six counties in size and the second largest by population. The River Shannon flows through the city of Limerick into the Atlantic Ocean at the north of the county.
Below the city, the waterway is known as the Shannon Estuary. Because the estuary is shallow, the county's most important port is several kilometres west of the city, at Foynes. Limerick City is the county town and is also Ireland's third largest city.