Gert is a mainly masculine given name (sometimes a short form of Gerrit, Gerard, etc.), with some female bearers (short for Gertrude). Since 1993 no one in Sweden has been baptised as Gert according to the Swedish Bureau of Census, so the name is becoming increasingly rare. In 2010 around 12,000 in Sweden had the name as their first name according to the same source. Gert is most common in Sweden among men over 50 years of age. Around 400 women in Sweden have Gert as their first name according to the Swedish Bureau of Census. Sports.
https://en.wikipedia.org/wiki/Gert