Ekkachai or Ekachai () is a Thai masculine given name. People with the name include:
Ekkachai Janthana, runner Ekkachai Nophajinda, sports journalist Ekkachai Rittipan, footballer Ekkachai Sumrei, footballer Ekachai Jearakul (born 1987), Thai classical guitarist Ekachai Uekrongtham, Thai theatre and film director