| Office: | Cathaoirleach of Seanad Éireann |
| Term Start: | 25 April 1987 |
| Term End: | 1 November 1989 |
| Predecessor: | Patrick J. Reynolds |
| Successor: | Seán Doherty |
| Term Start1: | 13 May 1982 |
| Term End1: | 23 February 1983 |
| Predecessor1: | Charles McDonald |
| Successor1: | Patrick J. Reynolds |
| Office2: | Leas-Chathaoirleach of Seanad Éireann |
| Term Start2: | 9 March 1983 |
| Term End2: | 25 April 1987 |
| Predecessor2: | Charles McDonald |
| Successor2: | Charles McDonald |
| Office3: | Senator |
| Term Start3: | 27 October 1977 |
| Term End3: | 17 February 1993 |
| Constituency3: | Administrative Panel |
| Birth Name: | Tras Barlow |
| Birth Date: | 4 January 1930 |
| Birth Place: | Dublin, Ireland |
| Death Place: | Waterford, Ireland |
| Nationality: | Irish |
| Party: | Fianna Fáil |
| Children: | 2 |
Tras Honan (; 4 January 1930 – 25 November 2023) was an Irish Fianna Fáil politician who served as Cathaoirleach of Seanad Éireann from 1982 to 1983, and 1987 to 1992, Leas-Chathaoirleach of Seanad Éireann from 1983 to 1987, and as a Senator for the Administrative Panel from 1977 to 1992. Honan was the first woman and to date the only woman to have held the position of Cathaoirleach (Chair) in the upper house of the Oireachtas.[1]
Tras Barlow was born in Dublin on 4 January 1930. She was educated at St. Leo's Convent, Carlow and at the Mercy Convent, Clonmel, County Tipperary. She worked as a housewife and businesswoman before becoming active in politics.
In 1977, she was elected to the 14th Seanad as a Fianna Fáil Senator for the Administrative Panel and served for 15 years[1] until her defeat at the 1993 elections to the 20th Seanad.[2]
In 1982, in the short-lived 16th Seanad, she was elected to the position of Cathaoirleach, the first woman to hold the post. In 1983, in the 17th Seanad, she was elected as Leas-Chathaoirleach (Deputy chair), and in 1987, in the 18th Seanad, she was re-elected as Cathaoirleach.
In 1960, she married Dermot Honan; who was a senator from 1965 to 1975. His father T. V. Honan was also a senator from 1934 to 1954. She was also a sister of Carrie Acheson, a TD.
Tras Honan died on 25 November 2023, at the age of 93.[3] [4]