Nikki Tyler (born December 4, 1972 in Berkeley, California) is a pornographic actress best known for her work in the 1990s.

Tyler starred in numerous musical stage performances in high school. Later, she went to college in Los Angeles, aspiring to become a clinical psychologist. In order to finance her tuition, she decided to appear in nude photo shoots. She graced over 100 top men's magazines, becoming Penthouse magazine's Pet of the Month in December 1995. Tyler then dropped out of college, attended makeup school, and was employed as a makeup artist for Vivid Video.

She worked there for a year and a half before porn stars Celeste and Ashlyn Gere convinced Tyler to enter the hardcore industry.

Tyler did only lesbian scenes at first. Her first on-screen girl/girl scene was in American Pie (1995). This was followed by a scene with her real-life longterm off-screen lesbian lover at the time, Jenna Jameson, in VR69 (1995). Her relationship with Jameson was documented in Jameson's autobiography. The two were together off and on for several years, and reportedly remain close friends to this day.

She was rewarded for her success a few months later with her own exclusive Vivid contract. In order to improve her popularity, Tyler received breast implants. She also began to work with male porn stars such as Rocco Siffredi in Nikki Loves Rocco (1996). Nikki Tyler retired from the porn industry in 1999.