Red Seal (Italian: Sigillo rosso) is a 1950 Italian crime film directed by Flavio Calzavara and starring Gino Cervi, Carla Del Poggio and Adriano Rimoldi.

[1] The film's sets were designed by the art director Alberto Boccianti.

It was not a commercial success, earning around 28 million lira at the box office.

[2] After her only son is killed fighting during the Second World War, an elderly widow turns her home into a boarding house to make ends meet.

Several of the guests are hunting for a mysterious document, bound with a red seal, entrusted to her by her son.