Bucephala was an ancient Greek warship type (5th century BCE), likely a variant of the trireme—named after Alexander the Great's horse, Bucephalus.
Modern warships are fundamentally different:
No "modern Bucephala" exists. The name survives only in:
If you meant a modern Greek Navy ship: they operate MEKO 200 frigates (Hydra-class), Type 214 submarines, Roussen-class FACs—none named Bucephala.