Małachowski (feminine Małachowska) is a Polish surname, it may refer to:
- Adrian Małachowski (born 1998), Polish footballer
- Godzimir Małachowski (1852–1908), Polish lawyer
- Jacek Małachowski (1737–1821), Polish nobleman and politician
- Kazimierz Małachowski (1765–1845), Polish general
- Nicole Malachowski (born 1974), American aviator
- Piotr Małachowski (born 1983), Polish athlete
- Ricardo de Jaxa Malachowski, Peruvian architect
- Stanisław Małachowski (1736–1809), Polish nobleman and politician
- Wilhelm von Malachowski (1914–1980), German military officer
- The House of Małachowski (Nałęcz), a noted Polish family