Boy name origins & meanings Old English : White, birch treeGerman : Castle Boy name variations Birch Birche Birket Birkee Birkey Birky Birkhead Birkhed Birkit Birkett Berch Berche Burch Byrch Byrche Burke Bourke Burk Birke Byrk Byrke Family name origins & meanings Danish, Swedish, and northern English : variant of Birch.German : northern habitational name from any of various places called Birk, Birke, or Birken.German : southern variant of Buerk.Slovenian : unexplained.