Kaļķu iela (Lime Street) is a street in the medieval old town of Riga, Latvia.

The street begins at the central square Rātslaukums and goes to the North East as far as the boundary of the historical centre.

Brīvības iela and Brīvības bulvāris form a continuation of Kaļķu iela.

In 1950, during the Soviet occupation of Latvia, Kaļķu iela was merged with Brīvības iela and Brīvības bulvāris to form the central street of Soviet Riga that was called Lenin Street (Latvian: Ļeņina iela, Russian: улицa Ленина).

This article about a Latvian building or structure is a stub.