Grebenstchikov House of Prayer (Latvian: Grebenščikova vecticībnieku kopienas lūgšanu nams, Russian: Рижская Гребенщиковская соборная моленная) is an Old Believers place of worship in Riga, the capital of Latvia.

It is situated at the address 73 Krasta Street.

[1] The Grebenstchikov congregation is affiliated with the Pomorian Old-Orthodox Church, a priestless Old Believer denomination.

[2] With an estimated 25,000 worshipers, the parish is considered as the world's largest.

This article about a church building or other Christian place of worship in Latvia is a stub.