Number 17A is an abstract expressionist painting by American painter Jackson Pollock, from 1948.

It was painted a year after Jackson Pollock introduced his drip technique.

The piece was featured in the August 1949 edition of Life that made Jackson Pollock a celebrity.

[1] It is owned by hedge fund manager Kenneth C. Griffin, who purchased it in September 2015 from David Geffen for $200 million, a then record-breaking price, at which time it was lent to the Art Institute of Chicago.

[2][3] As of May 2024[update], it is ranked 5th on the list of most expensive paintings.