Séamus Brennan Fianna Fáil George Lee Fine Gael A by-election was held in the Dáil Éireann Dublin South constituency in Ireland on Friday, 5 June 2009,[1] following the death of the Fianna Fáil Teachta Dála (TD) Séamus Brennan on 9 July 2008.

As Brennan was a Fianna Fáil TD, that party had the responsibility of deciding when the by-election should take place.

[2] There was no legal requirement on when to hold a by-election in Ireland in 2009 but it was generally held within six months.

[3] A by-election in the Dublin Central constituency was held on the same date.

[4] George Lee resigned from Dáil Éireann on 8 February 2010 after serving 8 months as a TD.