Harald Krull is a person who appeared in the documentary TV series "Der Penny-Markt auf der Reeperbahn" ("The Penny Market on the Reeperbahn") in 2007. In Spring of 2020, the series was published on YouTube, spawning many memes in Germany, including those involving Harald Krull, who claimed to have gone to Harvard and to be a sea captain with seafaring licenses A, B, C and 6.

Since then, Harald Krull has been worked into image macros and YouTube comments.