Melissa Natalie Tkautz (born 24 January 1974) is an Australian actress, singer, model, and presenter. She played the role of Nikki Spencer on the popular Australian TV soap opera E Street, from September 1990 to May 1993.

During the early 1990s she had a solo music career, performing mononymously as Melissa, and had top 20 hits on the ARIA Singles Chart with "Read My Lips" (Number One, June 1991), "Sexy (Is the Word)" (No. 3, September) and "Skin to Skin" (No. 16, April 1992).