Anna Vasa of Sweden was a Swedish princess heavily involved in the politics of that country and of Poland. She was starosta of Brodnica and Golub. The youngest child of King John III of Sweden and Catherine Jagiellon, she was close to her brother Sigismund Vasa, King of Poland (1587–1632) and King of Sweden (1592–99). Raised a Catholic, Anna converted to Lutheranism in 1584. Though she had several suitors, she remained unmarried.

Brodnica is a town in northern Poland with 28,574 inhabitants as of 2014. It is the seat of Brodnica County in the Kuyavian-Pomeranian Voivodeship. The nearby Brodnica Landscape Park, a protected area, gets its name from Brodnica.