February 2011 – February 2020
|Born||28 December 1971|
|Political party||Sinn Féin|
|Spouse(s)||Gillian O'Brien (m. 2008)|
|Alma mater||Cork Institute of Technology|
He was a member of Cork City Council from 2000 to 2011. O'Brien also has a sporting background. He is a former board member and chairman of Cork City Football Club, having been a founding member of the supporters' trust, FORAS. He is also a member of St. Vincent's GAA Club.
O'Brien was criticised by the Minister of Education Ruairi Quinn over his position on the Household Charge. O'Brien responded by saying he had been elected to implement just and fair laws, and described the household tax as being neither.
He is the Sinn Féin Junior Spokesperson for Finance, and Public Expenditure and Reform.
- "Jonathan O'Brien". Oireachtas Members Database. Retrieved 7 March 2011.
- "Jonathan O'Brien". ElectionsIreland.org. Retrieved 1 March 2011.
- "TDs repeat call to shun household charge". RTÉ News. Retrieved 15 March 2012.
- "Sinn Féin's O'Brien will not contest next general election". RTÉ News. 6 January 2020.
| Sinn Féin Teachta Dála for Cork North-Central