Vivek Ganapathy Ramaswamy (born August 9, 1985) is an American entrepreneur and politician. He founded Roivant Sciences, a biotech pharma company, in 2014 and was its CEO until 2021. Ramaswamy entered national politics as the youngest presidential candidate in the 2024 Republican primaries. He withdrew his bid and endorsed Donald Trump for the 2024 presidential election. In 2025, he launched his campaign for the 2026 Ohio gubernatorial election and received endorsements from both President Trump and the Ohio Republican Party.

Ramaswamy was born in Cincinnati, Ohio, to Indian immigrant parents. He graduated from Harvard University with a bachelor's degree in biology in 2007. He earned a law degree from Yale University in 2013. Ramaswamy became an investment partner at a hedge fund, before founding Roivant Sciences in 2014. He also co-founded an investment firm, Strive Asset Management in 2022.

Ramaswamy largely remained apolitical until 2020, when he supported Donald Trump for the 2020 presidential election. In 2021, Ramaswamy wrote his first book, Woke Inc and appeared on cable networks arguing against leftist "woke" policies. He also became an active donor to the Republican Party. Ramaswamy briefly considered running in the 2022 U.S. Senate election in Ohio.

Ramaswamy describes himself as a conservative American nationalist. He has criticized environmental, social, and corporate governance (ESG) initiatives, labeling them as social agendas that are detrimental for businesses. He opposes affirmative action, claiming that it violates merit-based principles. In October 2025, Forbes estimated Ramaswamy's net worth to be $1.4 billion; his wealth comes from biotech and financial businesses.

Vivek Ganapathy Ramaswamy was born on August 9, 1985, in Cincinnati, Ohio, to Indian Hindu immigrant parents. His parents are Tamil Brahmins from Kerala. His father, V. Ganapathy Ramaswamy, a graduate of the National Institute of Technology Calicut, worked as an engineer for General Electric, while his mother, Geetha Ramaswamy, a graduate of the Mysore Medical College & Research Institute, worked as a geriatric psychiatrist for Merck and Schering-Plough. His parents immigrated from Palakkad district in Kerala, where the family had an ancestral home in a traditional agraharam in the town of Vadakkencherry.

Ramaswamy was raised in Ohio. Growing up, Ramaswamy often attended the local Hindu temple in Dayton with his family. His conservative Christian piano teacher, who gave him private lessons from elementary through high school, also influenced his social views. He spent many summer vacations traveling to India with his parents. In high school, Ramaswamy was a nationally ranked tennis player.

Ramaswamy attended public schools through eighth grade. He then attended Cincinnati's St. Xavier High School, a Catholic school affiliated with the Jesuit order, graduating as valedictorian in 2003.

Ramaswamy received a Bachelor of Arts degree (summa cum laude) with a major in biology from Harvard University in 2007. He was a member of Phi Beta Kappa. At Harvard, he gained a reputation as a brash and confident libertarian. He was a member of the Harvard Political Union, becoming its president. He told The Harvard Crimson that he considered himself a contrarian who loved to debate. While in college, he performed Eminem covers and libertarian-themed rap music under the stage name and alter ego "Da Vek", and was an intern for the hedge fund Amaranth Advisors and investment bank Goldman Sachs. He wrote his senior thesis on the ethical questions raised by creating human-animal chimeras, earning him a Bowdoin Prize.