Thomas Saunders may refer to:

Politicians

• Thomas Saunders (MP for Devon), English MP for Devon, 1653–1659

• Thomas Saunders (MP for Coventry), English MP for Coventry

• Thomas Saunders (died 1565) (1513–1565), English MP for Gatton, Reigate and Surrey

• Thomas Saunders (born 1593), English MP for Buckinghamshire

• Thomas Saunders (born 1626) (1626–1670), English MP for Wallingford

• Thomas Saunders (born 1641), English MP for Milborne Port

• Thomas E. Saunders (born 1951), member of the Indiana House of Representatives

Others

• Thomas Saunders (colonel), co-author of the Petition of the three colonels of 1654

• Thomas Saunders (governor) (1713–1775), British governor of Madras from 1750 till 1755

• Thomas Harry Saunders (1813–1870), known as T. H. Saunders, British paper-maker known especially for his watermarks

• Thomas William Saunders (1814–1890), British metropolitan police magistrate

• Thomas Saunders (academic), Vice-Chancellor of Oxford University

• Thomas A. Saunders III (1936–2022), American investment banker and philanthropist