Thomas Dundas

• Thomas Dundas (of Fingask and Carronhall), MP for Orkney and Shetland
• Thomas Dundas, 1st Baron Dundas, British politician
• Thomas Dundas (British Army officer), governor of Guadaloupe
• Thomas Dundas (Royal Navy officer), British naval officer of the Napoleonic Wars
• Thomas Dundas, 2nd Earl of Zetland, British nobleman and politician
• Thomas Dundas (High Sheriff) of Sussex