1) Dutch surname 
Valk is a surname. It means `falcon` in Dutch and can be of metonymic origin referring to a falconer. Alternatively, it can be patronymic, son of Falk/Falco, a West Frisian given name.[http://www.meertens.knaw.nl/nvb/verklaring/naam/Falk There were 4380 people with the surname in the Netherlands in 2007. The name Valk in Estonia (895 people) may.....