The Commemorative Cross to the Romanian Heroes of the First World War (Romanian: Crucea comemorativă a eroilor români din Primul Război Mondial), also called the Heroes' Cross on Mount Cairaman (Crucea Eroilor de pe Muntele Caraiman) is a monument built between 1926 and 1928 on Caraiman Peak at an altitude of 2,291 m located in Romania, in the Bucegi Mountains of the Southern Carpathians.

Inside the pedestal there is a room that originally housed the electric generator that powered the 120 light bulbs of 500 W each located on the perimeter of the cross.

Tools, wood, metal parts, the remaining components and all the necessary materials were transported by train to the Buşteni railway station.

The funicular transported different parts along the Jepilor Valley all the way to Schiel Canton, where they were taken on narrow trails with horses and donkeys to the top of the Caraiman Peak.

In 1939 the Cross was connected to the national energy grid and thus the generator was made redundant; the power comes via underground cable from the electrical substation of the Coştila radio relay complex located at an altitude of 2,487 metres (8,159 ft).