"Radek \r(a)-dek\ as a boy's name is of Slavic origin. Variant of Roderick (Old German) "famous ruler".
Similar baby names are Rad, Radley, Radly, Radlee, Radlea, Rafik, Raiden, Rayder, Reade, Rider, Ryder, Rodel, Rodeo, Rurek, Rudey, Rudee, Ryden and Zadok. "