Elfving is a Scandinavian surname. It may refer to:
Åsa Elfving (born 1970), Swedish hockey player Betty Elfving (1837–1923), Finnish writer Carl-Axel Elfving (1920–1988), Swedish actor David Pizzoni Elfving (born 1985), Swedish bandy player Ester Elfving (1870–1950), Finnish writer Fredrik Elfving (1854–1942), Finnish botanist Gustav Elfving (1908–1984), Finnish mathematician and statistician Hilda Elfving (1827–1906), Swedish educator Östen Elfving (1874–1936), Finnish agronomist and politician Otto Elfving (1874–1944), Finnish politician Ulf Elfving (born 1942), Swedish journalist and broadcaster William J. Elfving (born 1941), American judge