Yes, VICTORIAS is a Scrabble word!

Letter values in Scrabble US: V 4, I 1, C 3, T 1, O 1, R 1, I 1, A 1, S 1.

Is it a valid word?

VICTORIAS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

queen of Great Britain and Ireland and empress of India from 1837 to 1901; the last Hanoverian ruler of England (1819-1901)
(Roman mythology) goddess of victory; counterpart of Greek Nike
a waterfall in the Zambezi River on the border between Zimbabwe and Zambia; diminishes seasonally
a town in southeast Texas to the southeast of San Antonio
port city and the capital of Seychelles
a state in southeastern Australia
capital of the Canadian province of British Columbia on Vancouver Island

Also: queen victoria, victoria falls, capital of seychelles.