Jeffcott Street is a north–south street through the largest section of North Adelaide, South Australia.

The southern end continues south as Montefiore Road over a bridge over the River Torrens and Adelaide Metro railyards to connect with the northern end of Morphett Street.

Jeffcott Street was named in 1837 at a meeting to set street names after John Jeffcott, the first judge of the Supreme Court of South Australia and one of the members of the committee.

[2] The Montefiore Road bridge below Jeffcott street is the latest of many on the site.

[3] In 2019, Jeffcott street's powerlines were put underground with funding from the Power Line Environment Committee.