The boar was seen running through the park carrying a bag in its mouth which contained a laptop. The owner of the laptop followed close behind, having been disturbed from a naked sunbathing session.
Photos of the incident were shared widely online after Adele Landauer, a Berlin local, posted them to Facebook.
Ms Landauer said there were many nude sunbathers at the spot when the boar appeared.
While the man was bathing, she said, the boars calmly ate a pizza from his bag and then went “looking for a dessert”.
“They found this yellow bag and decided to take it away. But the man who owned it realised it was the bag with his laptop.
“So, he was very focused and run [sic] behind the boars in order to get it back.”
Ms Landauer said when she showed her photos to the man he was very amused and gave her his blessing to share them publicly.
Ms Landauer, an actor and life coach, said this incident was a good example of someone persevering to achieve their goal.
Germany is famed for naturism; it is common for sunbathers and swimmers to strip off in the warmer months and many beaches and public parks permit nudity as part of Freikorperkultur, which translates to “free body culture”.