Radiation Hazard (born 31 January 1995) is a Pakistani music artist and YouTuber best known for his channel focused on Valve-centric video games. Since joining YouTube on 15 January 2020, he has built a following through his deep dives into Half-Life 2 Beta content, explorations of other Valve titles, and thoughtful analysis of mods and gaming history. He also runs a secondary channel, Hazard Music, where he releases his own musical work.

Radiation Hazard frequently collaborates with fellow creators, including YouTuber Noclick, on community-led events such as #BreakingTheBar and other initiatives aimed at bringing renewed attention to older Valve games. His content is community-driven and warmly nostalgic, often highlighting forgotten corners of game history and encouraging fan participation through themed events and discussions.

Fans often refer to him affectionately as RadHaz, praising his candid livestreams, his engaged community, and his unique blend of gameplay, music, and commentary. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.