Frank Bellamy's The late 1950s update to Classics Illustrated's version of Robin Hood. Good intro for the younger crowd.
Robin Hood: Outlaw of Sherwood Forest [An English Legend] (Graphic Myths and Legends) Superbly illustrated comics from the 1950s British comics magazine Swift.
Outlaw: The Legend of Robin Hood A dark and exciting version of the Robin Hood tale in comics form, with an afterword by this site's author.
Robin Hood A good modern Classics Illustrated style take.
Robin, The Boy Wonder: A Celebration of 75 Years Adaptations of ballads and new stories.
Muppet Robin Hood (Muppet Graphic Novels) The Robin Hood story starring Kermit the Frog and the Muppets.
Green Arrow: The Longbow Hunters Robin the Boy Wonder was originally named for Robin Hood

Green Arrow: Year One A 21st century update to the origin of the modern-day Robin Hood, an important influence on the TV show Arrow.
Green Lantern/Green Arrow Green Arrow's dressed like Robin Hood since 1941, but these stories are when he first started to act like Robin Hood.
Showcase Presents: Green Arrow, Vol. 1 "Suggested for mature readers" - Graphic content, particularly around the serial killer this modern-day Robin Hood hunts.
Grimm Fairy Tales: Robyn Hood (Grimm Fairy Tales Presents) Green Arrow stories from the 1950s and 1960s, including a time-travel story with Robin Hood, and the original stranded-on-island origin.
Bandit Territories: British Outlaws and Their Traditions Odd fantasy version of the legend with Robyn as a modern teen girl who interacts with a fantasy world. Maybe not for younger readers.