Thwaite is a common element of placenames in North West England, and Yorkshire. It is also found elsewhere in England, including two places called Thwaite in Norfolk and one in Suffolk. It is most often found as a suffix. It is a common element of field names, as well as settlement names. It is most frequent in the North West, where some 80 examples are found in Cumberland, at least 30 in Westmorland, about 40 in Lancashire and 30 in the North Riding, whilst it is common in the western parts of the West Riding. Elsewhere in England it is rare, only three examples occurring in the East Riding and seven in Nottinghamshire.