23andMe Holding Co. is a publicly traded personal genomics and biotechnology company based in South San Francisco, California. It is best known for providing a direct-to-consumer genetic testing service in which customers provide a saliva sample that is laboratory analysed, using single nucleotide polymorphism genotyping, to generate reports relating to the customer's ancestry and genetic predispositions to health-related topics. The company's name is derived from the 23 pairs of chromosomes in a diploid human cell.

Anne E. Wojcicki is an American entrepreneur who co-founded and is CEO of the personal genomics company 23andMe. She founded the company in 2006 with Linda Avey and Paul Cusenza. She is a co-founder and board member of the Breakthrough Prize.