Mocatta is a Sephardic Anglo-Jewish surname. Notable people with the name include:

• Alan Mocatta (1907–1990), British judge and a leader of the Spanish and Portuguese Jews of Britain
• David Mocatta (1806–1882), British architect
• Elias Mocatta (1798–1881), British merchant and financier, significant in the early credit history of Venezuela and other South American countries
• Frederick David Mocatta (1828–1905), British financier and philanthropist

• Mocatta family
• ScotiaMocatta