- crossA geometrical figure consisting of two straight lines or bars intersecting each other such that at least one of them is bisected by the other.
- CrosbyA village in Crosscanonby parish, Cumberland, Cumbria, previously in Allerdale borough (OS grid ref NY0738).
- CrostonA surname.
- CrosthwaiteA village in South Lakeland district, Cumbria, England (OS grid ref SD437914).