Siti Nordiana Alias (born 22 November 1984) is a Malaysian singer, actress, songwriter and businesswoman.

She started her music career at age of 15 and has released six studio albums to date.

She signed to Malaysian record label, FMC Music and released debut album Gurindam Rindu Berkasih in 1999.

She made a breakthrough role in the television series, Dia Semanis Honey (2016) where she paired with Alif Satar.

[18] On 16 April 2018, Nana and actor, Shaheizy Sam were appointed as ambassadors for Japanese cultured milk products, Calpis to promote the fiber goodness in conjunction with 'Goodness, It's In Our Culture' campaign and to promote the goodness and joy found in all every Calpis drink.