Ren Eryn Gill (born Ren Erin Gill, 29 March 1990), known professionally as Ren, is a Welsh songwriter, musician, rapper, producer, and director. He was a member of the indie hip-hop band Trick The Fox and the British busking band The Big Push.

In 2022, Ren released "Hi Ren", a viral video that charted Worldwide in YouTube’s trending music video chart. It garnered 6.8 million views in two months and received an honourable mention for best European music video at the Prague music video awards, as well as a nomination for best music video at Camerimage 2023.

The next six songs Ren released, "Sick Boi", "Bittersweet Symphony (The Verve Retake)", "Illest of Our Time", "Animal Flow", and "Suicide" also appeared in the United Kingdom's Trending Music Video Chart on YouTube. He was invited to play at Glastonbury 2023 and other major UK summer music festivals.

Ren has released two albums, Freckled Angels (2016) and Sick Boi (2023). Sick Boi reached the number one spot on the UK charts on October 20, 2023. In the US, it debuted at No. 137 on the Billboard 200. Ren debuted at No. 4 on Billboard's Emerging Artists chart and No. 54 on the Billboard 100 Artists chart.

Money Game part 3, from the Sick Boi Album, won Best Music Video, Best Director, and Best Concept at London Music Video Awards in December 2023. It was nominated for Best Cinematography and Best Narrative at the LMVAs 2024 competition. It won Best Music Video, Best Director Music Video, and an Honourable Mention for Best Cinematography at the 2024 International Music Video Awards, and won Best Music Video in 2024 at the ÉCU The European Independent Film Festival. Ren wrote and performed the song, while Ren Gill and Samuel Perry-Falvey directed the video..