| IJmuiden Sea Lock | |
| Native Name: | Zeesluis IJmuiden |
| Waterway: | North Sea Canal |
| Country: | Netherlands |
| County: | Velsen |
| First: | January 2022 |
| Length: | 500m (1,600feet) |
| Width: | 70m (230feet) |
| Fall: | Varies according to sea-level |
| Pushpin Map: | Netherlands |
| Pushpin Map Size: | 260 |
| Pushpin Map Caption: | Location of IJmuiden Sea Lock in the Netherlands |
The IJmuiden sea lock (Dutch: zeesluis IJmuiden) serving Port of Amsterdam via the North Sea Canal is the largest lock in the world when considering dimensions.[1] [2] The lock, situated in IJmuiden in the municipality of Velsen, was opened on 26 January 2022 in the presence of King Willem-Alexander of the Netherlands. The locks of IJmuiden have a history dating back to 1876, when the largest lock of that era was opened.