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July 26, 2026Sources cited
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Hank Green

Hank Green is an American YouTuber, entrepreneur, author, and science communicator.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Hank Green is an American YouTuber, entrepreneur, author, and science communicator. He is known for co-creating the YouTube channels Vlogbrothers, SciShow, and Crash Course with his brother John Green, and for co-founding VidCon and Complexly.

Early life

Hank Green was born William Henry Green II in Birmingham, Alabama, in 1980. He is the younger brother of author John Green.

Online video career

Green became widely known through Vlogbrothers and later through educational channels including SciShow and Crash Course. His work has focused on science communication and online education.

Business and projects

Green co-founded VidCon and Complexly and has been involved in other creator-focused ventures. These projects helped shape the online video and educational media landscape.

Writing and media

Green is also an author and has appeared in multiple media roles, including producer, writer, and podcaster. He has written fiction as well as essays and commentary.

Key facts

  • He is best known for his online video work and educational science content.
  • He co-created Vlogbrothers with his brother John Green.
  • He helped found VidCon, a major online video convention.
  • He co-founded Complexly, the media company behind Crash Course and SciShow.
  • He is also a published author and has worked as a musician and podcaster.
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Canadian context

Hank Green is relevant to Canadian readers through VidCon and online education/media culture, which have audiences and creators in Canada, and through the broad international reach of his science communication work.

Frequently asked questions

Who is Hank Green?
Hank Green is an American YouTuber, entrepreneur, author, and science communicator best known for Vlogbrothers, SciShow, Crash Course, and VidCon.
What is Hank Green's real name?
His birth name is William Henry Green II.
Is Hank Green related to John Green?
Yes. Hank Green is John Green's younger brother.
What did Hank Green co-create?
He co-created or co-founded Vlogbrothers, VidCon, and Complexly, and helped develop educational YouTube channels including SciShow and Crash Course.
What is Hank Green known for on YouTube?
He is known for science communication, educational videos, and collaborative content with his brother John Green.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Hank_Green
    Supports: Birth name, birth date, birthplace, occupations, and general biography.
  2. Hank Green — https://hankgreen.com/
    Supports: Self-described roles, Complexly, Vlogbrothers, Crash Course, SciShow, and personal background.
  3. Hank and John Green — https://hankandjohn.com/who-we-are/
    Supports: Complexly, educational channels, and Foundation to Decrease World Suck.
  4. IMDb — https://www.imdb.com/name/nm3736364/bio/
    Supports: Birth date, birthplace, and credits including Vlogbrothers and SciShow.
  5. Czech Wikipedia — https://cs.wikipedia.org/wiki/Hank_Green
    Supports: Co-founding VidCon and work with Vlogbrothers, Crash Course, and SciShow.