A lawn mower is a machine which can be used to cut a lawn to an even length.
A lawn mower is found in the Muggle Studies classroom at Hogwarts School of Witchcraft and Wizardry. Arthur once helped Ludo Bagman's brother, Otto, by smoothing over a problem involving a lawn mower enchanted with magical powers. As thanks, Ludo got Arthur prime tickets to the 1994 Quidditch World Cup.
During the summer of 1997, the Muggle next-door neighbour to the Dursleys was using a lawn mower and was shocked when Harry Potter yelled. Later in the same day, as Harry was having a conversation with Vernon Dursley regarding the Order of the Phoenix's plan to protect the Dursley family, the neighbour's lawn mower stalled.
- Harry Potter and the Chamber of Secrets (video game) (PS1 version only)
- Harry Potter and the Goblet of Fire (Mentioned only)
- Harry Potter and the Deathly Hallows
- LEGO Harry Potter: Years 1-4
- LEGO Harry Potter: Years 5-7