Olivia Casta (born Olivia Cláudia Motta Casta, August 15, 1997) is an American-Spanish model and social media influencer. Born in Spain, she resides in San Francisco, California, and rose to prominence through her Instagram account (@oliviacastaxx), where she has over 2.9 million followers for her fashion, swimwear, and lifestyle posts. She is also active on X, with nearly 950,000 followers. Beginning her modeling career at 16, Casta has worked with brands like Dior, Calvin Klein, and Fashion Nova. She operates an online store, tinGz, offering fashion accessories. Her estimated net worth ranges from $300,000 to $1.5 million. Standing at 5’8”, she is of mixed ethnicity and holds dual American-Spanish citizenship. Casta keeps her personal life private and enjoys traveling, tennis, and photography.