Vaida may refer to:
Places
Vaida, Estonia, a borough in northern Estonia
Vaida Bay, a bay in the far northwest of Russia
Vayda-Guba, a rural locality in Murmansk Oblast, Russia
Vaida, a village in the commune of Roșiori, Bihor, Romania
Vaida-Cămăraș, a village in Căianu Commune, Cluj County, Romania
People
Alexandru Vaida-Voevod (1872-1950), Romanian politician
Gheorghe Elemer Vaida (1936-2017) Romanian chemist-engineer
Veronica Vaida (born 1950), Romanian-American chemist
Vaida Pikauskaitė (born 1991), Lithuanian cyclist
Vaida Žūsinaitė (born 1988), Lithuanian runner
Vaida Žitinevičiūtė, Lithuanian gymnast; see 2015 World Artistic Gymnastics Championships – Women's qualification Vaida Sipavičiūtė (born 1985), Lithuanian basketball player