Ranald MacDonald (disambiguation)

Ranald MacDonald (1824–1894) was the first native English-speaker to teach the English language in Japan.

Ranald MacDonald may also refer to:
 * Ranald MacDonald (bishop) (1756–1832), Scottish Roman Catholic bishop
 * Ranald MacDonald (founder of Clanranald), Scottish, founder of the MacDonald of Clanranald
 * Ranald Og MacDonald, captured Dunyvaig Castle in 1614
 * Ranald Macdonald (1928–1999), Scottish rugby player
 * Ranald Macdonald (journalist) (born 1938), Australian journalist, media executive, broadcaster and educator
 * Ranald George Macdonald (1788–1873), Scottish clan chief and Member of Parliament
 * Ranald Roderick Macdonald (1945–2007), British mathematician and psychologist