1) Russian surname 
Yermolayev (Ермолаев) and Yermolayeva (Ермолаева; feminine) is a Russian surname. ==Derivation== Yermolayev is derived from the given name Yermolay (or Ermolai, Ermolay, Yermolai; Ермолай), which was from the Greek Hermolaos, meaning `the people of Hermes`. ==Alternative variants== `Yermolayev` may also alternatively be...