Happiness is a mental or emotional state of well-being defined by positive or pleasant emotions ranging from contentment to intense joy. A variety of biological, psychological, religious and philosophical approaches have striven to define happiness and identify its sources. Various research groups, including positive psychology, are employing the scientific method to research questions about what "happiness" is, and how it might be attained.

Happiness is an emotional state characterized by feelings of enjoyment, pleasure, and satisfaction.

Happiness... Is Not a Fish That You Can Catch (written as simply Happiness... on the cover) is the third studio album by Canadian alternative rock band Our Lady Peace. It was released on September 21, 1999 by Columbia Records. The album was very successful in Canada, debuting at #1 on the Canadian Albums Chart. The album was certified 3x Platinum in July 2001. Hit singles from the album include "One Man Army", "Is Anybody Home?", and "Thief". The final track on the CD, "Stealing Babies", features Elvin Jones, a famous jazz drummer who died in 2004. The photo shoot for this album took place around Staten Island in New York State.