Stellar may refer to:

• Stellar (New Zealand band), a New Zealand-based rock band
• "Stellar" (song), a 2000 song by Incubus
• Stellar (South Korean band), a South Korean girl group
• Stellar Awards, awards for the gospel music industry

Stellar (stylised Stellar*) was a New Zealand pop/rock band led by vocalist Boh Runga, sister of acclaimed recording artist Bic Runga. They have had four RIANZ top 10 singles (the highest being "Every Girl" at #3) and two No. 1 albums. The band's signature song is "Violent", which at the 2000 New Zealand Music Awards won the Single of the Year award, as well as winning Runga an award for best Songwriter. The band won seven awards, among them the Best Album award for their debut, Mix. This was followed up by 2001's Magic Line and 2006's Something Like Strangers. The band officially disbanded in 2010 after releasing their greatest hits compilation.

The Stellar Group, Inc. (which uses the trade name "Stellar") is a privately owned design, engineering, construction and mechanical services firm headquartered in Jacksonville, Florida, and founded in 1985. The July, 2013 issue of Florida Trend magazine listed Stellar as Florida’s 60th-largest private company, and reported that it employed 639 people, including architects, engineers, constructors, refrigeration specialists and technicians.