The following list contains five hundred and three items, as follows: (i) Three hundred and five structures which have been positively identified as brochs and are still in existence. For those printed in italics no dimensions or structural features are on record. (ii) Sixty-six sites of vanished structures which are known to have been brochs. These are listed as ‘broch sites’. In a few cases descriptions are on record. (iii) One hundred and thirty-two structures which probably are or possibly may be brochs, but which have not been positively identified as such. These are listed as ‘uncertain examples’.