Mleczko

Mleczko is a Polish surname. Mleczko is the diminutive of the Polish word for "milk" – mleko – and in a transferred sense is used to describe any whitish, viscous liquid. People with the name include:
 * Allison Mleczko (born 1975), American ice hockey player
 * Andrzej Mleczko (born 1949), Polish illustrator
 * Miłosz Mleczko (born 1999), Polish footballer
 * Wiktoryn Konstanty Mleczko (…–1679), Elder of Samogitia and Colonel of the Grand Ducal Lithuanian Army