Mark Ryan may refer to:Mark Ryan (actor), British film, television and theatre actor Mark F. Ryan (1844–1940), Irish revolutionary and author Mark Ryan, Labor member of the Legislative Assembly of Queensland Mark Ryan (guitarist) (1959–2011), guitarist for Adam and the Ants Mark Ryan (1924–1985), Wisconsin State Assemblyman Mark W. Ryan, music editor for film and television Mark Ryan, alias used by Canadian-Armenian music composer, songwriter and producer DerHova