| Birth Name: | Mary Furlong |
| Birth Date: | 30 April 1943 |
| Birth Place: | County Limerick, Ireland |
| Death Place: | County Limerick, Ireland |
| Spouse: | Nicholas Jackman |
| Children: | 1 |
| Party: | Fine Gael |
| Office: | Senator |
| Term Start1: | 17 September 1997 |
| Term End1: | 12 September 2002 |
| Term Start2: | 1 November 1989 |
| Term End2: | 17 February 1993 |
| Constituency2: | Labour Panel |
Mary Jackman (; 30 April 1943 – 30 May 2022)[1] was an Irish Fine Gael politician. She was a senator from 1989 to 1992 and again from 1997 to 2002.[2]
Jackman was from Castletroy in County Limerick. A teacher by profession, she spent her entire career at Presentation College, Limerick.
A member of Limerick County Council for the Castleconnell local electoral area from 1985 to 2014,[3] she was the first woman Cathaoirleach (chair) of Limerick County Council.[4] Jackman has unsuccessfully contested four general elections in the Limerick East constituency (1989, 1992, 1997, and 2002),[5] falling just 305 votes short of winning seat at the 1997 general election. She was also defeated at the Limerick East by-election in March 1998, and did not stand at the 2007 general election.[5]
After her 1989 defeat, she was elected to the 19th Seanad on the Labour Panel. She lost her seat at the 1993 Seanad elections, but was re-elected in 1997 to the 21st Seanad. At the 2002 Seanad elections, she stood instead on the Industrial and Commercial Panel, but did not win a seat.[5] She died on 30 May 2022, aged 79.[6]