| Athletics 300 metres hurdles | |
|---|---|
| World records | |
| Men |  Karsten Warholm 33.26 (2021) |
| Women |  Femke Bol 36.86 (2022) |
The 300 metres hurdles is a track and field hurdling event. It is a 300 meter version of the International event the 400 metres hurdles. It is a standard event under the NFHS in American high school competition and a championship level event in Masters athletics. The two iterations of the event vary somewhat. Common to all long hurdling events, the distance between hurdles is 35 metres.