From the cold valley or rocky valley
Calden is a rare English surname-turned-given name likely derived from Old English elements 'cald' meaning cold and 'denu' meaning valley. It may also be a variant of the Scottish name Calder, which refers to a rocky water or wild water.
Less common today
Calden isn't in the latest US Top 1000. It last peaked at #7,884 in 2007.
US births per 5-year period, 1990βpresent (SSA data).