Fenchurch could refer to:
- Fenchurch (The Hitchhiker's Guide to the Galaxy), a character from The Hitchhiker's Guide to the Galaxy
- Fenchurch (clothing), a clothing brand
- Fenchurch Street, a street in the city of London
- Fenchurch Street railway station, a railway station on that street
- Fenchurch, one of the oldest working locomotives, built by William Stroudley and painted in his "improved engine green", a yellow colour, for he was colour-blind.