The Triplets (Catalan: Les tres bessones; Spanish: Las tres mellizas) are three fictional characters (Anna, Teresa and Helena) created by Catalan illustrator Roser Capdevila.

The Triplets were created in 1983, based on Capdevila's own daughters, three actual triplets born in 1969. The stories were immediately successful and began publishing in many countries. In 1985 a new character, the "Bored Witch" (La Bruixa Avorrida, in Catalan) was added to the plots to form a collection of classical stories, "The Triplets and (...)".

In 1994, television producer Cromosoma and the Catalan TV corporation Televisió de Catalunya adapted the stories to make an animated series based on the books. It became very successful and profitable and led to the production of a second series with the Bored Witch as the main character, together with France 3, Canal J and Storimages.

By 2004, The Triplets series consisted of 104 episodes, while The Bored Witch reached 52. They have been translated from Catalan to 35 different languages and have been shown in 158 countries or territories. A spin-off series was also made, titled The Baby Triplets.

In October 2020, it was announced that the series would receive a reboot that would focus 20 years after the first one ended.