Roger Thomas may refer to:

• Roger Thomas (American football coach) (born 1947), American football coach
• Roger Thomas (British politician) (1925–1994), British Labour Party politician
• Roger Thomas (Iowa politician) (born 1950), Iowa State Representative
• Roger C. Thomas (born 1939), British physiologist
• Roger Thomas (diplomat), former British Ambassador to Azerbaijan
• Roger Thomas (designer) (born 1951), interior designer known for his work in Las Vegas
• Roger J. Thomas (1942–2015), solar physicist
• Roger "Raj" Thomas, fictional character on the U.S. TV series What's Happening!! and What's Happening Now!!

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