A2 Ethniki Handball is the 2nd-tier of Greek handball championship.
Esperos Kallitheas B.C. is the men's basketball section of the Greek multi-sports club Esperos Kallitheas (full name: POK Esperos/Panathlitikos Omilos Kallitheas Esperos).
Hesperus (or Hesperos) was a Greek mythological figure.
Kallithea (Greek: Καλλιθέα, meaning "the best view") is the 8th largest municipality in Greece (100,641 inhabitants, 2011 census) and the 4th biggest in the Athens urban area (following municipalities of Athens, Piraeus and Peristeri).
Kallithea F.C. (Γ.Σ. Καλλιθέα) is a Greek professional football club based in Kallithea, currently competing in the Football League (see Greek football league system).