List of busiest ports by cargo tonnage

This is a list of the world's busiest seaports by cargo tonnage, the total mass of actual cargo transported through the port. The rankings are based on AAPA world port ranking data.

The cargo rankings based on tonnage should be interpreted with caution since these measures are not directly comparable and cannot be converted to a single, standardized unit. In the Measure column, MT = Metric Tons, HT = Harbor Tons, FT = Freight Tons, and RT = Revenue Tons.