Joanna Newsom and the Ys Street Band is an EP by Joanna Newsom, first released on April 9, 2007 on Drag City.

The EP was recorded and mixed over 3 days at The Plant Studios after Joanna had cancelled 3 consecutive shows due to a lost voice at the end of her seven-week-long U.S. tour. It contains one previously unreleased song, "Colleen", and new arrangements of two previously-released songs, "Clam, Crab, Cockle, Cowrie" from The Milk-Eyed Mender and "Cosmia" from Ys.