The Berlin Half Marathon is a major endurance event held annually in early spring in Berlin, Germany. Besides the runner's main race, the event includes a race for inline skaters, wheelchair athletes and handbikers. All athletes use the same course, which has the official half marathon distance of 21.0975 km.

A half marathon is a road running event of 21.0975 kilometres —half the distance of a marathon. It is common for a half marathon event to be held concurrently with a marathon or a 5K race, using almost the same course with a late start, an early finish or shortcuts. If finisher medals are awarded, the medal or ribbon may differ from those for the full marathon. The half marathon is also known as a 21K, 21.1K, or 13.1 miles, although these values are rounded and not formally correct.