Adam Alfred Gustaw Count Broel-Plater (23 April 1836 – 24 December 1909) was a Polish-Lithuanian noble known as collector and archaeologist.

[1] He acquired the Vepriai estate with the town and manors of Kowalaki and Bataniszki in the Ukmergė County.

[1] Plater sponsored construction of both Roman Catholic and Evangelical Lutheran churches in Švėkšna.

In one of the tumulus he discovered seven Egyptian amulets which modern archaeologists cannot explain and suggest that they were brought by the Plater family from Egypt.

[2] He started collecting souvenirs and monuments connected with the pagan period of the Lithuania and Polish history.

[1] After the collapse of the uprising, having a choice of death, he allegedly agreed to become marshal of the Vilna county.

In 1872, in the Holy Cross Church in Warsaw, he married Genowefa Pusłowska, daughter of Wandalin Pusłowski [pl] and Jadwiga Gołąbek-Jezierska.