What is "rittich"

Rittich, or Rittikh when transliterated from Russian, may refer to one of the following persons.

• Eugene Rittich, Canadian musician
• Jenõ Rittich, Hungarian Olympic gymnast
• Alexander Rittich:
  • Aleksandr Aleksandrovich Rittikh Minister of Agriculture, Russian Empire
  • Aleksandr Fyodorovich Rittikh military commander and ethnographer, Russian Empire