The Crawford Society states that: “As a Southern Upland House the Crawfords followed Lowland traditions, as opposed to the Highland traditions, in that there are no septs under or over the Crawford surname. However, like all surnames, the spelling has undergone the effects of various cultures. One general rule is that the use of ‘u’ is Scots and the use of ‘w’ is Anglo. The variety of spellings includes most of the combinations in the table to the right. The most numerous surname worldwide is the Anglo spelling ‘Crawford’ with the Scottish spelling ‘Craufurd’ mostly in Scotland a distant second. The House of Crawford considers all of these variations as equal.”

The spelling variants are: Crawford Crawfford Crawfurd Crawffurd Crawferd Crawfferd Crawfird Crawffird Crawfort Crawffort Crawfoot Crawffoot Crawfoord Craffoord Craford Crafford Crafurd Craffurd Craferd Crafferd Crafird Craffird Crafort Craffort Crafoot Craffoot Crafoord Craffoord Crauford Craufford Craufurd Crauffurd Crauferd Craufferd Craufird Crauffird Craufort Crauffort Craufoot Crauffoot Craufoord Crauffoord Crowford Crowfford Crowfurd Crowffurd Crowferd Crowfferd Crowfird Crowffird Crowfort Crowffort Crowfoot Crowffoot Crowfoord Crowffoord Croford Crofford Crofurd Croffurd Croferd Crofferd Crofird Croffird Crofort Croffort Crofoot Croffoot Crofoord Croffoord Cranford Cranfford Cranfurd Cranffurd Cranferd Cranfferd Cranfird Cranffird Cranfort Cranffort Cranfoot Cranffoot Cranfoord Cranffoord Kraford Krafford Krafurd Kraffurd Kraferd Krafferd Krafird Kraffird Krafort Kraffort Krafoot Kraffoot Krafoord Kraffoord