Happyendless

{{unreferenced|date=June 2019}}

{{Infobox musical artist

| name = Happyendless

| image =

| caption = Happyendless in 2018

| image_size =

| origin = Vilnius, Lithuania

| genre = New wave, rock, electronic

| years_active = 1998–present

| label =

| associated_acts =

| current_members = Andrius Kauklys
Marius Narbutis

| past_members = Saulius Prūsaitis (2005–2015)
Darius Vaičiulis (1999–2006)

}}

Happyendless is a Lithuanian new wave, rock and electronic band formed in Vilnius in 1998. In 2007, the band released their "Power Forever" single and became one of the most popular bands in Lithuania at the time. Their first studio album Room For Mistakes was released in 2008, followed by Cinema in 2011. After the departure of their lead singer, Saulius Prūsaitis, who left to pursue a solo career in 2012, the band entered a hiatus until 2018, when the remaining members reunited and recorded the band's third album Kinetika (Kinetics).