James Cropper plc is an English papermaking company based in Burneside, Kendal, Cumbria, England.

In 1828 the mill was leased to Hudson and Forster who installed second-hand papermaking machines, and in 1845 James Cropper rented the premises.

[4] The company produces specialist paper for the manufacture of The Royal British Legion's Remembrance poppies: when a decision was made in 1978 to move from fabric to paper poppies, Croppers produced a paper which could be crimped into shape and with colour which could be sure not to rub off onto clothing.

[5] A historian was commissioned to write a history of the company but failed to deliver, at which point the current chairman Mark Cropper (great-x-3-grandson of the founder) stepped in to write The Leaves We Write On: James Cropper, a History in Paper-Making (Ellergreen, 2004: ISBN 0954919114).

[6][7] In 2021 the company entered a three-year agreement as "headline sponsors" of the Wainwright Prize for nature and conservation writing.