Nathan Lee Gill (born 6 July 1973) is a British former politician who was the Leader of Reform UK Wales from March to May 2021, when he resigned from the party.

He was educated at Ysgol David Hughes and then Coleg Menai: on leaving the latter he joined a family-owned private company based in the East Riding of Yorkshire.

The company employed 180 staff,[2] chiefly from central Europe (mainly Poland) and the Philippines, to which they optionally provided chargeable "bunkhouse"-style accommodation.

Working in care is quite tough and we had a big turnover of staff.The company collapsed into administration with debts of £116,000, after its main bankers HSBC withdrew its borrowing facility, owing to the financial crisis of 2007–2008.

[14] With John Bufton stepping down as MEP in 2014, Gill was selected as UKIP candidate number one for Wales in the European Parliament Election and held on to the seat for the party.

[17] He was beaten to the post of leader of the UKIP group in the National Assembly for Wales by former Conservative MP Neil Hamilton.

[21] Also in September 2016 Gill's media advisor Alexandra Phillips spoke to The Guardian, stating that she had left UKIP and joined the Conservatives, making comments critical of Hamilton.

On 6 December 2018, Gill resigned from UKIP, in opposition to the party leader Gerard Batten's links to far-right activist Tommy Robinson.

[31] In March 2023, Nation.Cymru revealed that Gill had met multiple meetings with pro-Russian leaders in Ukraine and Moldova that were organised by men accused of being Kremlin agents.