The Type 702 Berlin-class replenishment ship is a series of replenishment ships, originally designed and built for service in the German Navy. Designed to support United Nations overseas missions, the Berlin class were initially to number four vessels. However, three hulls were cut from the initial order. The lead ship, Berlin, began construction in 1999 and entered service in 2001. The second hull, Frankfurt am Main, was re-ordered in 1998, began construction in 2000 and entered service in 2002. The third hull, Bonn, was ordered in 2008 to a modified design, began construction in 2010 and entered service in 2013. All three ships are in service and are based at Wilhelmshaven.

A replenishment oiler or replenishment tanker is a naval auxiliary ship with fuel tanks and dry cargo holds which can supply both fuel and dry stores during underway replenishment (UNREP) at sea. Many countries have used replenishment oilers.