Dryburgh's remit will be to manage CosmoGirl!'s print and online products, including the weekly digital magazine launched this month.
The publisher role has been created to meet the digital demands of CosmoGirl!, which have significantly increased since the launch of Jellyfish and the recent relaunch of the CosmoGirl! .
Dryburgh will be leaving her current position as business manager at Emap Entertainment to join NatMags on April 16. Before joining Emap she was senior marketing manager at IPC Connect.
Jan Adock, group publishing director at Cosmopolitan Group, said: "Lucy's digital, online and print experience will be a great asset to our publishing and digital strategies. We are thrilled to be welcoming her to the Cosmopolitan Group."
Jellyfish is part of a three-pronged strategy for CosmoGirl!, which also encompasses the monthly print magazine and the website. It features gossip, fashion, competitions, user-generated content and click-throughs to the CosmoGirl! website.