Catarina Ykens (born 1659) was a Flemish still life painter.
She was born in Antwerp into a family of painters as the daughter of Johannes Ykens and his second wife Barbara Brekevelt.
She was the sister of Peter Ykens.
She apprenticed under her father and joined the Antwerp Guild in 1688.
She became a Beguine and composed oil paintings.
Her works often combined religious scenes with garlands of flowers.