Answer:

olga

Answer	Crossword Clue
OLGA	"The Three Sisters" sister
OLGA	Diva Borodina
OLGA	Gold-medal gymnast, Korbut

OLGA	Russian saint
OLGA	Gymnast Korbut
OLGA	Kafka character
OLGA	Many a Russian miss
OLGA	Olympian Korbut
OLGA	... San Juan
OLGA	Bra brand
OLGA	Kurylenko of "The Water Diviner"

OLGA	Korbut
OLGA	Korbut the gymnast
OLGA	The Three Sisters sister
OLGA	Gold-winning Korbut
OLGA	Saint back in the USSR?
OLGA	Precursor of Nadia
OLGA	Sister of Anastasia
OLGA	Anastasia Romanov's sister

OLGA	Chekhovian sister
OLGA	"Three Sisters" sister
OLGA	Kurylenko of "Quantum of Solace"
OLGA	Model-actress Kurylenko
OLGA	One of Chekhov's "Three Sisters"
OLGA	Eldest sister in "Three Sisters"
OLGA	One of the Prozorov sisters
OLGA	'70s Olympics name

OLGA	First Russian Orthodox saint
OLGA	Russian gymnast Korbut
OLGA	Olympic legend Korbut
OLGA	First name in gymnastics
OLGA	Four-time gymnastics gold medalist Korbut
OLGA	First name in Olympics gymnastics
OLGA	10th-century Russian Orthodox saint
OLGA	Big name in lingerie

OLGA	Gold medalist Korbut
OLGA	Contemporary of Nadia
OLGA	Lingerie brand
OLGA	First name in Russian gymnastics
OLGA	Korbut the gymnastics star