My Number One is the twelfth single by Dutch girl group Luv', released in the autumn of 1980 by CNR/Carrere Records. This song appears on the album Forever Yours. This successful hit song in Benelux and minor hit in Germany was the opportunity to present to the public and the media Luv's new member, Ria Thielsch (who replaced Patty Brard).

Patty Brard suddenly left Luv' in August 1980 as the formation was promoting the single One More Little Kissie. This departure had a negative impact as the formation had legal obligations and had already recorded new material for an album. A new member Ria Thielsch (who like Patty had Indonesian and New Guinean origins) was rapidly found because of the group's duties. Though she made some appearances by performing One More Little Kissie on stage and on TV, she was officially introduced with the release of a new single: My Number One. This pop track uses elements from the military March and is Luv's best composition according to Hans van Hemert, the trio's producer.

The song was a Top 5 hit in the Netherlands and in Flanders (Belgium). It was Luv's last chart entry outside the Dutch speaking zone, ending the group's succession of export hits. It was a modest Top 60 single in Germany.

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