Lill-Jans plan, Public park in Östermalm district, Stockholm, Sweden.

Lill-Jans plan is a public park at the intersection of Valhallavägen and Engelbrektsgatan in the Östermalm district. The space features green areas, pedestrian paths, and a protected historic building at Lill-Jans plan 4.

The name Lill-Jans plan was adopted in 1887, recalling the tavern Lill-Jans run by the forester and court huntsman Lill-Jan Persson, who also gave his name to Lill-Jansskogen. The tavern was in fact the gatehouse of his farm. The site appears as Lilla Jans in 1731 and as Lill-jans in a 1733 list of Djurgården taverns. Master Palm held his first meetings here to launch the labour movement, drawing crowds that proved good business for the innkeeper.

The name recalls Lill-Jan Persson, the forest ranger and court hunter whose small tavern was in fact the gatehouse of his farm; the place appears as Lilla Jans in 1731 and as Lill-jans in a 1733 list of Djurgården taverns. Carl Michael Bellman sang of "denna Liljans krog" in Fredmans epistel nr 32, and August Strindberg mentions the spot in Röda rummet (1879). Mäster Palm held his first meetings here to launch the labour movement.

The park sits at a major transit junction with good connections to public transportation. Visitors can easily move through the paths and use it as a meeting spot or passage point.

The square is named after Lill-Jan Persson, the forester and court huntsman whose small tavern was in fact the gatehouse of his farm; the name Lill-jans appears in a 1733 list of Djurgården taverns. The nearby block Tallen takes its name from that tavern.