Pedro Henrique "Kiko" Loureiro (Portuguese: [loˈɾejɾu]; born 16 June 1972) is a Brazilian guitarist.

Inspired by various artists, including Eddie Van Halen, Jimmy Page, Jimi Hendrix, and Randy Rhoads, he moved to the electric guitar at 13 and by 16 had already joined two bands, Legalize (with Edu Mello on vocals, Dennis Belik on bass and Alja on drums) and A Chave, and was playing in nightclubs in São Paulo.

[1] Due to the increase in popularity of power metal, Loureiro has become quite successful, both playing in Angra and as a solo artist.

On 2 April 2015, it was announced that Loureiro had joined the American thrash metal band Megadeth, replacing Chris Broderick.

[5] Loureiro performed and co-wrote songs on Megadeth's 2022 release The Sick, the Dying... and the Dead!, which received critical appraisal.