Notable people with the surname Attanasio include:
- A. A. Attanasio, science fiction writer;
- Dino Attanasio, comics artist;
- Mark Attanasio, investment banker; Owner of the Milwaukee Brewers
- Orazio Attanasio, Italian economist
- Paul Attanasio, screenwriter and television producer.
- Gianluca John Attanasio, composer, singer-songwriter and music producer