Alexi "Wildchild" Laiho (born Markku Uula Aleksi Laiho[citation needed]; April 8, 1979) is a Finnish vocalist, composer, and guitarist. He is best known for being the lead guitarist as well as lead vocalist for melodic death metal band Children of Bodom, and he is also the guitarist for Sinergy and Kylahullut. He has previously played with Thy Serpent and Impaled Nazarene on occasion, as well as Warmen and Hypocrisy.

Laiho was ranked 96 out of 100 Greatest Heavy Metal Guitarists of All Time by Guitar World，Guitar World magazine has also ranked him as one of the 50 fastest guitarists in the world， In addition, Roadrunner Records ranked Laiho at 41 out of 50 of The Greatest Metal Frontmen of All Time， In addition to this, Total Guitar did a voting poll to determine the greatest metal guitarist of all time, and he was voted 1 out of 20 metal guitarists.