Bakoyannis (or Bakoyiannis; Greek, Modern (1453-);: Μπακογιάννης) with the female form being Bakoyanni (or Bakoyianni; Greek, Modern (1453-);: Μπακογιάννη) is a Greek surname. It is the surname of:
Dora Bakoyannis (born 1954), Greek politician and government minister
Kostas Bakoyannis (born 1978), Greek politician and regional governor