Helen Mary Jones (born 29 June 1960) is a Welsh Plaid Cymru politician, who was a member of the Senedd from 1999 to 2011 and again from 2018[1] to 2021.

[5] Her political interests include environmental issues, social justice, equal opportunities, children's rights and employment.

[8] Jones is a member of the Ministerial Advisory Board sent in to Pembrokeshire County Council by the Welsh Government to support and challenge as they improve safeguarding after damaging inspection reports.

[10] Jones returned to the Senedd in August 2018 to represent Mid and West Wales following the resignation of Simon Thomas.

[11] At the 2021 Senedd election, Jones was Plaid's second candidate on the list vote for the Mid and West Wales region, but failed to gain a seat.

[14] On 18 February 2021, Jones was reprimanded in court for having shared a tweet from a domestic abuse campaigner, about the suspect in an ongoing murder trial, which could have influenced the jury had they seen it.

[15] The Senedd's acting standards commissioner found Jones's actions to have breached Members' code of conduct.

[17] In April 2018, at an event organised by the campaign group Woman's Place UK, she questioned whether a rise in the number of "women and girls wanting to transition to the opposite sex" has been caused by pressure to look a certain way fuelled by social media.

[18] Following this, Youth Cymru, of which Jones was the chief executive from November 2011 until September 2017, released a statement distancing themselves from her views and saying that she was no longer associated with the organisation.