Gąska House in Radomiu, Historic townhouse on the Market Square in Radom, Poland.

Gąska House is a one-storey, three-axis building on the northern frontage of Radom's Market Square at No. 4. Its facade is crowned by a two-tier volute gable divided by pilasters and topped with a triangular pediment. The building has a side entrance hall and a single-flight staircase. The architect is unknown.

Stanisław (or Adam) Gąska, a municipal juror and councillor who was a baker from Opoczno, commissioned the house in the 17th century; its architect is unknown. By tradition King Charles X Gustav of Sweden slept here twice during the Swedish Deluge. In 1818–1819 it held municipal offices, and after World War II it became state property. A general renovation in 1953–1955 adapted it for exhibitions and gave the facade its present form.

The house takes its name from Stanisław (or Adam) Gąska, a municipal councillor and baker who came to Radom from Opoczno. Its later uses track the town's life: an Italian, Christian Valentino, kept a pharmacy here at the end of the 18th century, municipal offices occupied it in 1818–1819, and a beer warehouse operated here at the end of the 19th century.

Gąska House stands at no. 4 in the northern frontage of the Market Square, so its facade is seen from the open square itself. The building is not open to visitors; it is a protected monument, so viewing is from outside. The two-storey volute gable and the three-axis front are best read from across the square, where the whole elevation fits in view.

According to tradition, King Charles X Gustav of Sweden spent two nights in this house during the Swedish Deluge. The building later housed an apothecary run by the Italian Christian Valentino at the end of the 18th century, and at the end of the 19th century a beer warehouse operated here.