The Wave-Gotik-Treffen (German for 'Wave Gothic Meeting'; WGT) is an annual world festival for "dark" music and "dark culture" in Leipzig, Germany. 150+ bands and artists from various backgrounds (gothic rock, gothic metal, EBM, industrial, noise, darkwave, neo-folk, neo-classical, medieval, experimental, deathrock and punk music being examples) play at several venues throughout the city over four days on Whitsuntide. The festival also features multiple all-night dance club parties, several fairs with medieval, gothic, and related merchandise, a variety of cultural exhibitions and performances, large themed picnics, and a number of unofficial fringe events.

With 18,000 to 20,000 regular attendants, the WGT is one of the largest events of the gothic, cybergoth, steampunk, and rivethead subcultures worldwide.