A cocktail party invitation should signal three things at a glance: drinks rather than a seated dinner, a defined window with a start and an end time, and the dress code. Give the host, date, time range, address, and RSVP — and if you're serving food, say 'hors d'oeuvres' or 'light bites' so no one arrives starving or expecting a full meal.
The word 'cocktails' does the work of managing expectations: it tells guests to eat something beforehand, to expect to stand and mingle rather than sit down to courses, and to plan the evening as one part of the night rather than the whole of it. 'Please join us for cocktails' sets that frame instantly. If there will be substantial food, name it ('hors d'oeuvres served') so guests calibrate; if it's drinks only, the single word 'cocktails' already tells them.
Unlike a birthday or dinner, a cocktail party has a defined window, and naming both ends — 'six to nine o'clock' — is expected rather than rude here. The end time helps guests plan around it (a dinner reservation after, a sitter to relieve) and keeps the evening crisp. It also quietly tells anyone hoping this is a full dinner that it isn't, which is exactly the clarity a cocktail invitation is for.
'Cocktail attire' is practically part of the event's name, and guests will look for it — it means dressy but short of black tie, a dark suit or a cocktail dress. Put it near the bottom with the food note so the essentials read first. If the dress is more relaxed than the name suggests, say so ('smart casual, come straight from work') so no one over-dresses for what's really an after-work drink.
Copy-ready examples
ClassicPlease join us for cocktails
Friday, the sixteenth of May · six to nine o'clock
The Rooftop at 40 Prince Street
Hors d'oeuvres will be served · Cocktail attire
Kindly reply by May 10
PlayfulCocktails, anyone?
Come raise a glass with us
Friday, May 16 · 6–9 PM
The Rooftop, 40 Prince Street
Drinks & nibbles · Dress to impress · RSVP by May 10
ElegantYou are cordially invited
for cocktails and conversation
Friday, the sixteenth of May · from six until nine
The Rooftop · 40 Prince Street
Cocktail attire · Hors d'oeuvres served · RSVP by the tenth
Questions
Dressy but not black tie — a step up from everyday, a step below formal. For most guests that's a dark suit or a cocktail dress. Because 'cocktail' names both the party and the dress code, guests expect the attire line and will dress to it, so include it.
Yes. Cocktail parties run to a defined window, and stating 'six to nine' is expected rather than rude — it helps guests plan a later reservation or a sitter and keeps the evening crisp. This is the one invitation type where an end time is genuinely welcome.
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