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9 Last-Minute Halloween Costumes for Work (Office-Safe)

ByCostume Team

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The email said “costumes encouraged.” You saw it this morning. You have a 10 a.m. meeting.

Every costume here goes on top of what you’d normally wear to work, takes 15 minutes or less, and comes off in seconds if a client walks in. No masks, nothing scary, nothing HR will want to talk about.

Jump to a Costume

  1. Rosie the Riveter
  2. Cat
  3. Witch
  4. Mad Scientist
  5. Cowboy
  6. Hippie
  7. 80s Workout Instructor
  8. Farmer
  9. Ghost (Office Edition)

1. Rosie the Riveter

Illustration of a Rosie the Riveter style costume: a woman in a chambray work shirt with sleeves rolled above the elbow, a red bandana with white polka dots tied around her head with the knot on top, a small curl of hair at the forehead, red lipstick, high-waisted dark jeans and work boots, flexing one arm with her fist up.

The best office costume there is. Rosie works over almost any outfit, and everyone recognizes her.

How to do it: Chambray or denim shirt with sleeves rolled, a red bandana tied on top of your head and red lipstick. Flex for photos. About 5 minutes.

Worth buying: a red polka-dot bandana.

2. Cat

Illustration of a cat costume: a woman in an all-black outfit with black cat ears on a headband, a wired tail curving upward, winged eyeliner and drawn-on whiskers, black ankle boots, a playful pose.

Ears and a little eyeliner, and you’re a cat. It works with almost any dark work outfit.

How to do it: Black top or dress, cat ears and eyeliner whiskers. Skip the tail if you’ll be sitting all day. About 5 minutes.

Worth buying: a cat ears headband.

3. Witch

Illustration of a witch costume: a woman in a long layered black dress with a tattered hem and a deep purple sash, striped tights, a tall pointed wide-brimmed black hat, holding a broom, a small black cat at her feet.

A black outfit plus a hat is a witch. Take the hat off for meetings.

How to do it: Black dress or black top and pants, a pointed hat and a dark lipstick. Bring the office broom if there is one. About 5 minutes.

Worth buying: a witch hat with a wired brim.

4. Mad Scientist

Illustration of a mad scientist costume: a person in a stained, oversized white lab coat with rolled sleeves, wild frizzy white hair, big brass goggles pushed up on the forehead, long black rubber gloves, holding a flask with glowing green liquid, a gleeful expression.

Perfect for the person in IT, finance or R&D. A lab coat turns any outfit into a mad scientist.

How to do it: White lab coat or white button-down, goggles on your head, and messy hair. Carry a coffee mug labeled “Experiment #13.” About 10 minutes.

Worth buying: a cheap white lab coat.

5. Cowboy

Illustration of a cowboy costume: a man in a felt cowboy hat, a plaid snap-front western shirt, a red bandana at the neck, jeans with a big belt buckle, leather cowboy boots, a coiled lasso in one hand.

Casual Friday energy. A cowboy is a plaid shirt, jeans and a hat.

How to do it: Plaid shirt, jeans, boots and a cowboy hat. A bandana at the neck if your office is relaxed. About 10 minutes.

Worth buying: a classic cowboy hat.

6. Hippie

Illustration of a late-1960s hippie costume: a woman with long center-parted hair and a headband across the forehead, round tinted sunglasses, a peasant blouse, a fringed suede vest, bell-bottom jeans, love beads, flowers in her hair, sandals.

Comfortable enough to sit in all day. A hippie is a headband and round sunglasses.

How to do it: Flowy top, jeans, a headband across the forehead, round tinted glasses and a peace sign necklace. About 10 minutes.

Worth buying: a hippie headband set.

7. 80s Workout Instructor

Illustration of a 1980s aerobics costume: a woman in a neon pink leotard over shiny tights, bright leg warmers, a sweatband, a side ponytail with a scrunchie, white high-top sneakers.

Funny, colorful and great for a team photo. The 80s aerobics look fits over leggings or joggers.

How to do it: Neon top, leggings or joggers, a sweatband, leg warmers and a side ponytail. Stretch dramatically before meetings. About 10 minutes.

Worth buying: neon leg warmers.

8. Farmer

Illustration of a farmer costume: a smiling man in blue denim overalls over a red plaid flannel shirt with sleeves rolled, a straw hat, a red bandana in the back pocket, brown work boots, holding a white chicken under one arm and a small wicker basket of brown eggs.

Friendly, easy and very office-appropriate. A farmer is flannel and a straw hat.

How to do it: Flannel or chambray shirt, jeans, a straw hat and a bandana in the back pocket. Bring a stuffed chicken to your desk. About 10 minutes.

Worth buying: a straw farmer hat.

9. Ghost (Office Edition)

Illustration of a classic sheet ghost costume: a figure under a long flowing white sheet that just brushes the floor, two cut-out eye holes, a wide-brimmed hat under the sheet giving it a rounded shape, playful rather than scary.

A sheet ghost with a twist: you’re the ghost of meetings past. Wear the sheet for photos only.

How to do it: Bring a white flat sheet with eye holes for the costume contest, and pin a name badge to it that says “Boo, Accounts Payable.” About 10 minutes.

Worth buying: round novelty sunglasses.

Rules for Last-Minute Work Costumes

Build on your work outfit. A hat, ears or a bandana is easy to take off for a client call.

Skip masks, weapons and anything gory. They’re banned in most offices anyway.

Coordinate fast. Send one message to your team: “Everyone wear antlers/ears/bandanas.” Instant group costume.

Need more ideas? Start with our 10 last-minute Halloween costumes, or browse the full costume encyclopedia from A to Z.

Last-Minute Work Costume FAQ

What’s the easiest Halloween costume for work?

Rosie the Riveter or a cat. Both take about 5 minutes and go over regular clothes.

What’s a professional Halloween costume for the office?

A mad scientist in a lab coat, a cowboy, or Rosie the Riveter.

What’s a good last-minute group costume for coworkers?

A team of Rosies, matching cat ears, or an 80s workout class.

What Halloween costumes should I avoid at work?

Masks, fake weapons, gore and anything revealing or political.

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