Malden-on-Hudson (/ˈmældən/-), commonly known as Malden, is a hamlet (and census-designated place) in Ulster County, New York, United States.

There is a public boat launch on the Hudson River that is often used by the Malden Yacht Club, a group of local kayakers.

[2] According to the United States Census Bureau, the CDP has a total area of 0.5 square miles (1.3 km2), all land.

There were 174 housing units at an average density of 342.7 per square mile (132.3/km2).

26.1% of all households were made up of individuals, and 7.2% had someone living alone who was 65 years of age or older.