People
People on Verified Handles: the official social media accounts of 161,999 people, verified first, then A–Z.
- Mark RyanPersonresearcher (ORCID 0000-0002-1544-1007)
- Mark S. DossPersonAmerican opera singer
- Mark S. GeyerPerson12th director of the Johnson Space Center
- Mark S. GranovetterPersonAmerican sociologist
- Mark SallingPersonAmerican actor and musician (1982–2018)
- Mark SampsonPersonfootball coach (born 1982)
- Mark SanchezPersonAmerican football player (born 1986)
- Mark SandersPersonpolitician from the Netherlands
- Mark SanfordPersonAmerican politician (born 1960)
- Mark SargentPersonAmerican YouTuber and Flat Earth proponent
- Mark ScheifelePersonCanadian ice hockey player
- Mark SchillingPersonAmerican film critic, journalist, translator, and author
- Mark SchlabachPersonAmerican sports writer, author
- Mark SchmittPersonAmerican political scientist
- Mark SchoofsPersonAmerican journalist
- Mark SchwarzerPersonAustralian association football player
- Mark ScottPersonAustralian businessman
- Mark SelbyPersonEnglish snooker player
- Mark SewardsPersonBritish politician
- Mark SeymourPersonAustralian musician
- Mark ShentonPersonBritish theatre critic
- Mark ShepardPersonAmerican politician
- Mark SheppardPersonEnglish actor and musician
- Mark ShieldsPersonAmerican political columnist and commentator (1937–2022)
- Mark ShulzhitskiyPersonRussian racing driver
- Mark ShuttleworthPersonSouth African entrepreneur; second self-funded visitor to the International Space Station
- Mark SilcoxPersonIndian-born British comedian
- Mark SilkPersonAmerican academic
- Mark SimonsonPersonAmerican type designer
- Mark SmithPersontravel writer and creator of travel website seat61.com
- Mark SmithPersonIowa State Representative
- Mark SnowPersonAmerican composer for film and television (1946–2025)
- Mark SparlingPersonCanadian composer
- Mark SpeakmanPersonAustralian politician
- Mark SpencerPersonBritish politician (born 1970)
- Mark SpitzPersonAmerican Olympic swimmer (born 1950)
- Mark SpitznagelPersonAmerican businessman
- Mark SteelPersonEnglish comedian
- Mark SteinerPersonmusician, songwriter
- Mark SteinesPersonAmerican journalist
- Mark StewartPersonEnglish singer (1960–2023)
- Mark SteynPersonCanadian writer
- Mark StoermerPersonmusician, songwriter
- Mark StonePersonjournalist
- Mark StonePersonCanadian ice hockey player
- Mark StrahlPersonCanadian politician
- Mark StrepanPersonactor
- Mark StrongPersonBritish actor (born 1963)
- Mark StuartPersonAmerican musician
- Mark SumnerPersonauthor
- Mark SuppelsaPersonAmerican journalist
- Mark SusterPersonAmerican businessman
- Mark SweeneyPersonAmerican baseball player
- Mark T. BertoliniPersonAmerican businessperson
- Mark T. EsperPerson27th United States Secretary of Defense (2017-2020)
- Mark T. Vande HeiPersonAmerican astronaut
- Mark TacherPersonMexican actor (born 1977)
- Mark TakaiPersonAmerican politician
- Mark TakanoPersonAmerican politician (born 1960)
- Mark TamiPersonWelsh politician and MP (born 1962)