"Happy" is a song by Lighthouse Family, which was released as a single in July 2002. The song was the third pop single written by British duo Lighthouse Family for their third album Whatever Gets You Through the Day (2001). The song was produced by Kevin Bacon and Jonathan Quarmby. The song reached outside the top 50 in the United Kingdom as well as being in the top 30 in the World RnB Top 30 Singles Chart.

After the release of "Happy" in the UK, it reached to #51 in the UK Singles Chart and stayed in the charts for 1 week.

"Happy" also reached the top 30 in the World RnB Top 30 Singles and stayed in the charts for 3 weeks.