VD may stand for:

• Valentine's Day
• Van der (v.d.), a prefix in Dutch language surnames
• Veterans Day
• Vaginal delivery, a natural birth
• Venereal disease, now more commonly known as sexually transmitted disease or sexually transmitted infection
• The Vampire Diaries
• Vapour density
• Vaud, a canton in Switzerland
• V_d, design diving speed for an aircraft, see V speeds for further information
• Ivan Vdovic (1960–1992), Serbian drummer
• Veni Domine, a Swedish metal band
• Vicious Delite, a metal band featuring Ratt's Stephen Pearcy
• Victim Disarmament
• Victory Day
• Virtual directory
• Visual Design
• Volume of distribution (V_D)
• Volunteer Officers' Decoration, a Crown honour or long-service award made to auxiliary army officers of the British Empire between 1894 and 1931

An emoticon ( or ), etymologically a portmanteau of emotion and icon, is a metacommunicative pictorial representation of a facial expression that, in the absence of body language and prosody, serves to draw a receiver's attention to the tenor or temper of a sender's nominal non-verbal communication, changing and improving its interpretation. It expresses — usually by means of punctuation marks (though it can include numbers and letters) — a person's feelings or mood, though as emoticons have become more popular, some devices have provided stylized pictures that do not use punctuation.