Nagavalli is the Sanskrit name for the betel (piper betel) plant.
It may also refer to the following in Indian media:
Nagavalli (film), a 2010 Telugu horror and drama, a remake of the 2010 Kannada film Aptharakshaka Nagavalli (Manichitrathazhu), a character in Manichitrathazhu, a 1993 Malayalam psychological thriller film Nagavalli, a character in Apthamitra, a 2004 Kannada film and remake of Manichitrathazhu Nagavalli, a character in Aptharakshaka, a 2005 Kannada film and sequel to Apthamitra "Nagavalli", a single by the Indian metal band The Down Troddence Venu Nagavally (1949–2010), alternately spelled as Venu Nagavalli, Indian actor, screenwriter and director
See also Nagavali Express, an Indian railway train Nagavali River, India