Siem is of Dutch origin, derived from the name Simon. It means 'he who hears' or 'God has heard'. In the Netherlands, Siem is a popular male given name. The name gained significant attention in recent years due to its use by a prominent Dutch politician.
"Siem experienced a steady number of births from 2015 to 2023, with an average of around five births per year. The years 2020 and 2022 saw an increase, with seven and six births respectively, before returning to five in 2023."