Nova 100 (call sign: 3MEL) is a commercial radio station based in Melbourne, Victoria, Australia. Launched on December 3, 2001, it was Melbourne's first new commercial radio station in 21 years. Broadcasting on the 100.3 MHz frequency, Nova 100 is owned by NOVA Entertainment along with its sister station, Smooth FM 91.5.

The station primarily focuses on playing hit music and is known for its popular shows and presenters. Nova 100's weekday lineup includes:

• Jase & Lauren (6:00am-9:00am)
• Mel Tracina (9:00am-2:00pm)
• The Chrissie Swan Show (2:00pm-4:00pm)
• Ricki-Lee, Tim & Joel (4:00pm-6:00pm)
• Ben, Liam & Belle (6:00pm-8:00pm)
• Smallzy's Surgery (8:00pm-10:00pm)

Nova 100 has established itself as a major player in the Melbourne radio market, evolving from its initial "Sounds Different" format to its current adult contemporary style. The station reaches over 3.6 million listeners weekly across Australia, offering a mix of music, pop culture, and live entertainment.