Mattias is of Scandinavian origin, derived from the Old Norse name Matthías. It's a variant spelling of Matthew, which means 'gift of God' in Hebrew. Mattias was once quite popular in Scandinavia but has since seen a decline in usage, making it somewhat distinctive today.
The name Mattias experienced a significant increase in popularity from the late 1990s onwards. From 1997 to 2023, there was a noticeable rise in the number of births registered with this name, peaking at 184 births in 2021. However, it's important to note that these statistics might not accurately reflect the overall popularity of the name Mattias due to potential inaccuracies or inconsistencies in record-keeping during earlier years.