Vitaly Dmitrievich Buterin (Russian: Виталий Дмитриевич Бутерин; born 31 January 1994), better known as Vitalik Buterin (Russian: Виталик Бутерин), is a Russian-Canadian computer programmer best known for co-founding Ethereum. Buterin became involved with cryptocurrency early in its inception, co-founding Bitcoin Magazine in 2011. In 2015, Buterin deployed the Ethereum blockchain with Gavin Wood, Charles Hoskinson, Anthony Di Iorio, and Joseph Lubin.

Buterin was born in Kolomna, Russia, to a Russian family. His father, Dmitry, was a computer scientist. He and his parents lived in the area until he was the age of six, when his parents emigrated to Canada in search of better employment opportunities. While in grade three of elementary school in Canada, Buterin was placed into a class for gifted children and was drawn to mathematics, programming, and economics. Buterin then attended The Abelard School, a private high school in Toronto. Buterin learned about Bitcoin from his father at the age of 17.

In 2012, Buterin won a bronze medal in the International Olympiad in Informatics in Italy.

After high school, Buterin attended the University of Waterloo. There, he took advanced courses and was a research assistant for cryptographer Ian Goldberg, who co-created Off-the-Record Messaging and was the former board of directors' chairman of the Tor Project.

In 2013, he visited developers in other countries who shared his enthusiasm for code. He returned to Toronto later that year and published a white paper proposing Ethereum. He dropped out of university in 2014 when he was awarded with a grant of US$100,000 (equivalent to $135,999 in 2025) from the Thiel Fellowship, a scholarship created by venture capitalist Peter Thiel and went to work on Ethereum full-time.

In 2011, Buterin began writing for a publication called Bitcoin Weekly after meeting a person on a bitcoin forum with the aim of earning bitcoin. The owner offered five bitcoin (about $3.50 at the time) to anyone who would write an article for him. Buterin wrote for the site until it shut down soon thereafter due to insufficient revenue. In September 2011, Mihai Alisie reached out to Buterin about starting a new print publication called Bitcoin Magazine, a position which Buterin would accept as the first co-founder and contribute to as a leading writer.

Bitcoin Magazine in 2012 later began publishing a print edition and has been referred to as the first serious publication dedicated to cryptocurrencies. While working for Bitcoin Magazine, Buterin reached out to Jed McCaleb for a job at Ripple who accepted. However, their proposed employment fell apart after Ripple was unable to support a U.S. visa for Buterin.

In addition, he was from 2016 to 2024 a member of the editorial board of Ledger, a peer-reviewed scholarly journal that publishes full-length original research articles on the subjects of cryptocurrency and blockchain technology.

Buterin is the inventor of Ethereum, described as a "decentralised mining network and software development platform rolled into one" that facilitates the creation of new cryptocurrencies and programs that share a single blockchain (a cryptographic transaction ledger).

Buterin first described Ethereum in a white paper in November 2013. Buterin had argued that bitcoin needed a scripting language for application development. But when he failed to gain agreement, he proposed development of a new platform with a more general scripting language.

The Ethereum white paper was circulated, and interest grew in the new protocol in late 2013 and early 2014. Buterin announced Ethereum more publicly at the North American Bitcoin Conference in Miami on 26 January. Buterin delivered a 25-minute speech, describing the general-purpose global computer operating on a decentralized permissionless network, ending with potential uses for Ethereum that ranged from crop insurance to decentralized exchanges to DAOs.

Buterin has contributed as a developer to other open-source software projects. He also contributed to DarkWallet by Cody Wilson, Bitcoin Python libraries, and the cryptocurrency marketplace site Egora.