Mary Kelly (born 1952) is a former Labour Party politician from County Limerick in Ireland. She was elected as a member of Limerick County Council in 1991, serving as a Labour Party Councillor until 1999, representing the Newcastle Electoral Area. She served as a senator from 1993 to 1997.
A teacher and bookshop proprietor from Newcastle West, Kelly stood as a Labour candidate for Dáil ÃÂireann in the Limerick West constituency at the 1992 general election and did not win a seat. However, she achieved the highest number of votes ever for a Labour Party candidate in that constituency. In the subsequent elections to the 20th Seanad, she was elected on the Cultural and Educational Panel.
After a further defeat in the 1997 general election she did not stand in the 1997 elections to the 21st Seanad.