Płońsk (Polish: [pwɔj̃sk] ⓘ; Yiddish: פּלאָנסק, romanized: Plonsk) is a town in central Poland with 21,591 inhabitants (2022).

[1] Situated at the Płonka river in the historic region of Mazovia, it is the seat of Płońsk County in the Masovian Voivodeship.

According to archaeological research, the Płońsk stronghold was built in the late 10th century within the early Polish state.

[8] In 1940, the occupiers expelled around 1,000 Poles, whose houses and workshops were then handed over to German colonists as part of the Lebensraum policy.

Płońsk is located at the intersection of the Polish S7 highway (partly under construction as of February 2022) and National roads No.

In 2018, local Poles held a celebration in honor of David Ben-Gurion, who was born in the town, for the 70th anniversary of the re-establishment of the State of Israel.