Brian Wilson Presents Smile (also referred to as Smile or the abbreviation BWPS) is the fifth studio album by American musician Brian Wilson, released on September 28, 2004 on Nonesuch. It features all-new recordings of music that he had originally created for Smile, an unfinished album by the Beach Boys that he abandoned in 1967. Revisiting Smile was an intense emotional undertaking for Wilson, as he had been deeply traumatized by the circumstances that had originally surrounded the project.

Wilson initially agreed to revisit Smile in the form of a live concert performance as a follow-up to his 2000–2002 Pet Sounds tour. From October to November 2003, he worked with keyboardist Darian Sahanaja and original lyricist Van Dyke Parks in assembling a three-movement structure for BWPS while embellishing the material with newly written lyrics and melodies. Wilson and his band premiered it at the Royal Festival Hall in London on February 20, 2004. Motivated by the positive reception, he then adapted the performance as a studio-recorded solo album. None of the other Beach Boys were involved with BWPS, nor with the documentary that covered its making, Beautiful Dreamer: Brian Wilson and the Story of Smile.

BWPS was universally acclaimed by critics and peaked at number 13 in the US and number 7 in the UK. It earned Wilson his first Grammy Award, winning in the category of Best Rock Instrumental Performance for "Mrs. O'Leary's Cow". In 2011, the album's sequencing served as a blueprint for The Smile Sessions, a compilation dedicated to the original Beach Boys recordings. In 2020, BWPS was ranked number 399 on Rolling Stone's list of "The 500 Greatest Albums of All Time". It has been certified platinum by the RIAA, indicating one hundred thousand units sold.