Ville Hermanni Valo (pronounced [ˈʋilːe ˈʋɑlo] ^ⓘ; born 22 November 1976) is a Finnish singer, songwriter and musician. He is best known as the vocalist of the gothic rock band HIM.

Valo began his career playing bass and drums in various bands around the city. In 1991, he co-founded and became the singer and main songwriter of HIM, which would go on to become one of the most successful Finnish bands of all time and the first to receive a gold record in the United States. Outside of HIM, Valo has collaborated with various other bands and artists during his career, including Agents, The 69 Eyes, and Apocalyptica. In 2020, Valo embarked on a solo career under the moniker VV. His debut album Neon Noir was released in 2023.

He is also the creator of the heartagram emblem, HIM's trademarked symbol, which has achieved great popularity outside of the band's fanbase. Valo has received several accolades in the music industry and has been regarded as a sex symbol by several publications.

Ville Hermanni Valo was born in Helsinki, Finland, on 22 November 1976, the son of a Hungarian mother and a Finnish father. His mother Anita worked as a shoe saleswoman and later for the city of Helsinki. His father Kari worked as a taxi driver, before opening a sex shop, where Valo would later work as a teenager. Valo also has a younger brother Jesse, who, like his older brother, embarked on a music career, before turning to professional kickboxing. A few months after Valo was born, the family moved from Vallila to Oulunkylä, where later Valo attended comprehensive school. Valo's earliest musical memories pertain to his father, who would often listen to Finnish folk artists such as Tuomari Nurmio and Tapio Rautavaara while driving his taxi. Valo's mother also recounted how Rauli "Badding" Somerjoki's "Paratiisi" was the only thing that would sooth Valo as an infant. At age eight, Valo bought the album Animalize by Kiss, which sparked his interest in music.

After second grade, Valo was accepted into music-oriented class, where he took up bass guitar, inspired by Gene Simmons of Kiss. During third grade, Valo befriended Mikko "Mige" Paananen, who played bass as well. Around fourth or fifth grade, Valo joined his first band B.L.O.O.D., which played its first and only show in front of Valo's class. Afterwards Valo joined the Eloveena Boys, who performed a variety of U2 and Dire Straits covers at school dances. Valo also wrote his first song while in the band. During seventh grade, Valo met guitarist Mikko "Linde" Lindström, with whom he joined Aurora, which featured Valo on drums. During lower secondary school, Valo attended the Helsinki Pop & Jazz Conservatory, whilst playing bass and drums in various other bands as well. Afterwards he applied to the music-oriented Sibelius Upper Secondary School, but was rejected. Valo eventually dropped out of school altogether to concentrate on his music career. He was also allowed to skip Finland's national military service due to his asthma.

In 1991, Valo and Mikko "Mige" Paananen formed His Infernal Majesty. However, the band broke up in 1993 when Mige began his national military service. His Infernal Majesty was reformed in 1995 by Valo and Mikko "Linde" Lindstöm. After being rejoined by Mige, as well as adding keyboardist Antto Melasniemi and drummer Juhana "Pätkä" Rantala, His Infernal Majesty, now simply called HIM, released its debut album Greatest Lovesongs Vol. 666 in 1997. In 2000, now with drummer Mika "Gas Lipstick" Karppinen and keyboardist Juska Salminen, HIM released Razorblade Romance, which reached the number one in Finland, Austria and Germany. After replacing Salminen with Janne "Burton" Puurtinen, the band released Deep Shadows and Brilliant Highlights (2001) and Love Metal (2003), which continued to further HIM's success across Europe. The albums also paved the way for HIM's first tours in the United Kingdom and the United States.

In 2005, HIM released Dark Light, which became the group's most commercially successful album to date. It also gave HIM the distinction of being the first Finnish group in history to receive a gold record in the United States. Dark Light was followed up by 2007's Venus Doom. While not as successful as its predecessor, it gave HIM its highest chart position in the United States and garnered the band its first and only Grammy nomination. After 2010's Screamworks: Love in Theory and Practice, HIM entered an extended hiatus after Gas Lipstick was forced to take medical leave. Following several months of uncertainty, the band regrouped and released Tears on Tape in 2013. Gas Lipstick later announced his departure from the band in 2015. He was replaced by Jukka "Kosmo" Kröger. Preliminary work on another album was started, but the band ultimately felt like "there was nothing left to give collectively". On 5 March 2017, HIM announced that the band would be disbanding following a farewell tour. HIM played its final show on New Year's Eve 2017 as a part of its annual Helldone Festival.

Over the course of his career, Valo has contributed to numerous releases by other artists, including The 69 Eyes, Anathema, Andy McCoy, Bloodhound Gang, Cradle of Filth, Jeff Walker, Lullacry, MGT, The Mission and Tehosekoitin. Valo was also a member of Daniel Lioneye, a side project formed by Valo and fellow HIM members Linde Lindström and Mige. Valo played drums on the group's 2001 album The King of Rock 'n Roll, and its accompanying tour. In 2014, the band's original line-up reunited at the Helldone Festival.