Convoy QP 10 was an Arctic convoy of World War II, consisting of empty merchant ships returning from the Soviet Union after delivering their cargo there. The convoy consisted of 16 merchant ships and an escort of nine warships.[1] The convoy departed Murmansk on 10 April 1942 and arrived in Reykjavik on 21 April.[2] The convoy was attacked by German U-boats and aircraft, resulting in the loss of four merchant ships. Another ship, Stone Street, was damaged by air attack and forced to turn back to the Kola Inlet.[3] The convoy's escorts shot down six German planes and damaged another during the course of the voyage.[2] Later, six merchant ships from Convoy PQ 14 joined QP 10.[3]