Phra Sumen Road (Thai: ถนน พระสุเมรุ ) is a road within the Phra Nakhon district of Bangkok, Thailand. It took its name from the Phra Sumen Fort that stands on the northern end of the road.
Phra Sumen Road follows the course of the Bang Lamphu canal, ending at the intersection with Ratchadamnoen Klang Road, near Fort Mahakan.