Alfvén may refer to:
People Hannes Alfvén (1908–1995), Swedish plasma physicist and Nobel Prize laureate Hugo Alfvén (1872–1960), Swedish composer, conductor, violinist, and painter Marie Triepcke Krøyer Alfvén (1867–1940), known as Marie Krøyer, Danish painter, wife of Hugo
Other Alfvén wave, a type of magnetohydrodynamic wave, named after Hannes Alfvén 1778 Alfvén, an asteroid discovered in 1960, named after Hannes Alfvén