Believe is a song by American recording artist Cher, from her self-titled second studio album, released in 1998. It was released as the lead single on October 19 of the same year.

It is a dance-pop and electropop song that represents a radical change in Cher's musical direction compared to her previous works.

Commercially it was a global success, reaching number one in more than 23 countries. With more than 11 million copies sold, it became the singer's most successful single and one of the best-selling in music history.

It was the most sold composition in the United Kingdom in 1998 and remains the best-selling single by a female solo artist.