On the way to a power generation increasingly based on renewable energies and to an integrated energy market, HVDC technology plays a major role in future power supply systems. For the construction of HVDC systems and the design of protection devices, short-circuit currents are a key metric. Although multiple HVDC systems already exist, there is no standard for the determination of short-circuit currents in HVDC systems to date. For this reason, investigations of the fault location dependency are to provide a basis for uniform calculation and simulation specifications. This paper examines the dependency of the short-circuit current on the fault location in a meshed benchmark HVDC system and determines the fault location that leads to the most critical short-circuit current. For this purpose, characteristics of the current curve are evaluated throughout the fault location sweep. The paper closes with a definition of the fault locations that cause the most critical short-circuit currents.