Mieszko is a Slavic given name and may be a diminutive form of name Mieczysław.
Mieszko I of Poland (c. 935–992), Duke of the Polans from about 960 until his deathMieszko II Lambert (990–1034), King of Poland (1025–1031) and Duke from 1032 until his deathMieszko III of Poland (ca. 1126/27–1202) also known as Mieszko III the OldMieszko I Tanglefoot, (c. 1130–1211) Duke of Silesia, Racibórz, and Opole, and briefly Duke of Kraków and High Duke of PolandMieszko I, Duke of Cieszyn (1252/1256–1315), founder of Cieszyn Piast dynasty and the first Duke of CieszynMieszko II the Fat (c. 1220–1246), Duke of Opole-Racibórz and Kalisz-WieluńMieszko Bolesławowic (c. 1069–1089), Prince of Cracow from 1086 until his deathMieszko Mieszkowic (979/984 – aft. 992/995), Polish prince, member of the House of PiastMieszko Talarczyk (1974–2004), former guitarist and vocalist of Grindcore band NasumMieszko S.A. is a Polish confectionery firm known for "Michaszki" hazelnut chocolatesMieszko Wikipedia (Text) CC BY-SA