Maryensztadt, officially known as Browar Maryensztadt, is a craft brewery based in Zwoleń, Poland, that has been operating since 2015. The brewery started modestly with contract brewing before investing in its own small brewhouse, gradually growing into one of Poland's notable craft brewing names. Its unusual and memorable name has even been highlighted by international beer enthusiasts as a hallmark of the Polish craft beer scene. The brewery's portfolio is broad and ambitious, ranging from non-alcoholic beers to more complex styles. Maryensztadt has participated in international collaborations, including a notable double-collab with Baltic Brewing Supplies exploring different hop approaches — T-90 pellets versus liquid hops — on the same base beer. This spirit of experimentation and craftsmanship defines the brewery's identity within the Polish and wider European craft beer community. Maryensztadt is also recognised as a patron of Baltic Porter Day, a celebration dedicated to one of the most storied beer styles associated with the Baltic region. Their Wunderbar 13 has earned enthusiastic praise from international beer writers, cementing the brewery's reputation for producing standout beers that resonate beyond Poland's borders.