Veronica is a Latin name for females.
Literature
Veronica, a 2005 book by Mary Gaitskill
Music
Veronica, an American dance singer
"Veronica", a song by Elvis Costello
Veronica Mehta, a British Asian singer
The Veronicas, the twin sister pop rock group from Australia
People
Veronica De La Cruz, a CNN News anchor
Veronica Finn, a former pop singer
Veronica Franco, a poet and courtesan in sixteenth-century Venice
Veronica Giuliani, an Italian mystic
Veronica Lodge, a rich teenage girl in the Archie Comics universe
Verónica Páez, an Argentine marathon runner
Veronica Ruiz de Velasco, a neo-figurative Mexican artist
Saint Veronica, with her famous veil (Veil of Veronica), is part of Christianity's many legends Veronica Lake, an American film actress
Places
Veronica, a city of Argentina
Plants
Veronica, the Speedwells, a genus of plants
Science and technology
V.E.R.O.N.I.C.A. (Very Easy Rodent-Oriented Net-Wide Index to Computer Archives), a computer search engine for Gopher