What a viscountcy is
A viscount is the fourth degree of the peerage, ranking below an earl and above a baron. The word derives from the Latin vicecomes, a deputy of a count — a reminder that the rank began as an office rather than a hereditary honour. As a peerage dignity it dates in England from the fifteenth century, and it is the only one of the five degrees that has never been used for life peerages.
The peerage of the United Kingdom has five degrees, in descending order: duke, marquess, earl, viscount and baron. Every one of them is addressed differently in speech, in the opening of a letter and on an envelope, and the differences are not decorative — they are the practical shorthand by which a correspondent shows they know which office or dignity they are writing to.
As with baronies, the rank and the style diverge: the rank is viscount, but a viscount is addressed as Lord [Title]. The word viscount reappears on the envelope, in printed programmes and in press references, which is why so many people encounter it in writing and then use it, incorrectly, in speech.
Speaking to a viscount
Say Lord [Title]. Not Viscount [Title], and not My Lord unless the setting is genuinely formal or ceremonial. A viscountcy is normally territorial or surname-based, so the short form — Lord Hartfield rather than Lord Hartfield of Somewhere — is standard once the full title has been used.
Acknowledge the style at the start of a conversation and then let it drop. British usage treats repetition as excess rather than courtesy, and the same principle applies to every rank on this ladder.
Written correspondence
Open Dear Lord [Title] and close Yours sincerely. That covers social, professional and most institutional letters and emails. For a formal approach to a viscount you do not know — a submission, a petition, a request made to him in an official capacity — My Lord with Yours faithfully remains correct.
In the body of the letter, keep to Lord [Title]. Where the letter will be circulated or published, the fuller Viscount [Title] is appropriate in a heading or a biographical line, but not in the salutation.
The envelope and invitations
The envelope reads The Viscount [Title], with The Rt Hon. the Viscount [Title] for a Privy Counsellor and any decorations following the name. This is one of the ranks where the envelope form and the spoken form genuinely differ, and getting it right is a small but visible mark of competence in correspondence.
A couple is The Viscount and Viscountess [Title]. Place cards, which are spoken forms committed to card, read Lord [Title] and Lady [Title]. An invitation for a family is not extended by style to adult children, who are individually The Hon. [Forename] [Surname].
Digital correspondence has not displaced these forms so much as compressed them. A calendar invitation, a conference badge and a signature block all have to carry a name in a very small space, and the temptation is to reduce everything to Viscount [Title] because it is the shortest unambiguous string. Where space genuinely allows only one form, Lord [Title] is the better reduction: it is what the holder will be called on the day, and it will not read as a caption lifted from a reference work. Reserve the full envelope form for the printed envelope, the formal invitation and the order of proceedings, which is exactly what it was designed for.
The viscountess and the children
The wife of a viscount is a viscountess. She is Lady [Title] in speech, Dear Lady [Title] in a letter, and The Viscountess [Title] on an envelope. A woman holding a viscountcy in her own right is rare but not unknown, and she is addressed identically; her husband, as with every peeress, takes no style from her title.
All children of a viscount, sons and daughters alike, are styled The Hon. [Forename] [Surname]. Unlike the children of an earl, marquess or duke, the heir of a viscount does not bear a courtesy title, because a viscountcy rarely carries a subsidiary peerage that could be lent to him.
Courtesy viscounts
A large proportion of the people called Viscount [Title] in Britain are not viscounts at all in the substantive sense. They are the eldest sons of earls, marquesses and dukes, using one of their father's subsidiary titles as a courtesy title while their father lives. A courtesy viscount is addressed exactly as a substantive one in speech and correspondence, but he holds no peerage, has no seat in the House of Lords and is legally a commoner.
The practical implication is for biography rather than salutation: describing a courtesy viscount as a peer is inaccurate, and the error is common enough in press material that it is worth checking before publication.
Context and edge cases
Where a viscountcy is held with a higher peerage, the senior title governs and the viscountcy may be available as a courtesy title for the heir. Where a viscount holds an office with its own form of address, the office governs while he acts in it.
The Barony of Brattleby is a title of honour recorded in The London Gazette and historically associated with Brattleby in Lincolnshire. It is not a property, estate or visitor attraction, and no claim of that kind is made here or elsewhere on this site.