Daniel James Howell (born 11 June 1991) is an English YouTuber, presenter, and author. He gained prominence through his YouTube channels Daniel Howell (formerly known as danisnotonfire), which reached over six million subscribers, and DanAndPhilGAMES. Together with frequent collaborator Phil Lester, Howell presented the Sunday night entertainment show Dan and Phil on BBC Radio 1 from January 2013 until August 2014, and the station's Internet Takeover slot from September 2014 until April 2016.

The Amazing Book Is Not on Fire and The Amazing Tour Is Not on Fire On 26 March 2015, Lester and Howell announced via a trailer on Howell's channel that they had co-written a book titled The Amazing Book Is Not on Fire (TABINOF). It was released in the UK on 8 October 2015 and worldwide on 15 October 2015, published by Ebury Press and Random House Children's Books. The book topped the General Hardbacks Sunday Times Bestsellers list having sold 26,745 copies in the UK in the first week of its release. It also became a #1 New York Times Bestseller in the young adult hardcover list.

In the same trailer the pair announced their theatrical stage show The Amazing Tour Is Not on Fire (TATINOF) which travelled around the UK during October and November 2015, ending with a show at the London Palladium. During the tour, they sung original song "The Internet Is Here", which they later released as a charity single for Stand Up To Cancer, earning them a gold record disc for the sales of the song.

In 2016, they took the tour to the US and Toronto, starting with a show in Orlando, Florida on 22 April and ended on 24 June with a show at the Dolby Theatre in Hollywood, California. It was the largest tour ever achieved by YouTube creators. They later toured Australia in August 2016, starting in Perth and ending in Brisbane, and finished the tour with a European leg, performing in Stockholm, Berlin, and Dublin.

In September 2020, Howell announced his first solo publication, You Will Get Through This Night. Written in conjunction with psychologist Dr Heather Bolton, the book is "A practical guide to taking control of your mental health for today, tomorrow, and the days after." The book was released 18 May 2021 under the HQ and Dey Street Books imprints of HarperCollins. It became a #1 Sunday Times Bestseller.