Ngozi Rosalin Monu (born 7 January 1981 in Lagos, Nigeria)[1] is a Nigerian swimmer.

Uche Monu, her younger sister, is also a swimmer who represents Nigeria in the Backstroke and freestyle events.

Monu's inaugural Olympiad was the 2000 Sidney Summer Olympics at the age of 19.

She won her heat in the women's 50 metre freestyle with a time of 28.20s, but she was ranked 57th out of 92 medal competitors.

In Beijing Monu represented Nigeria for the second time participating in the same event.