Castaldo
Castaldo is a family name that may refer to:
- Alessandro Castaldo , German American football player
- Alfonso Castaldo (1890–1966), Archbishop of Naples
- Fabio Massimo Castaldo (* 1985), politician
- Francesco Castaldo (1330–1362), Bishop of Ravello
- Giovanni Battista Castaldo (1493–1563), Italian condottiere and general
- Ludwig von Castaldo (1839–1910), Lieutenant Field Marshal
- Matteo Castaldo (* 1985), Italian rower
