Office Christmas parties are a special opportunity to celebrate the season while maintaining professional poise and style. Choosing outfits that are modest, plus-size flattering, and Christmas-appropriate can help you feel confident, elegant, and joyful. This curated collection of 20 outfits covers every type of office Christmas party — from formal evening gatherings to semi-formal office celebrations and casual daytime parties. Each ensemble balances festive colors, flattering silhouettes, and professional polish, allowing you to honor the season with grace, confidence, and modest cheer.
Formal / Evening Office Christmas Parties
1. Emerald Green Sequined Gown with Gold Accents
Wear this flowing emerald gown to let the sequins catch the light during your office Christmas party. The high neckline and long sleeves keep the look modest and elegant, while the A-line shape flatters curves beautifully. Pair with gold accessories for a refined, festive finish.
2. Silver Evening Blazer Gown
Look elegant in this silver blazer gown with sharp lapels that creates a polished silhouette for a formal office Christmas party. The metallic fabric reflects the lights of the celebration while keeping the outfit professional and graceful. The turtleneck neck top adds a layer of modesty to the overall styling.
3. White Satin Polka-Dot Gown
This white satin gown with black polka dots could be a striking choice for a formal Christmas party. Full coverage maintains modesty, while a glittered clutch adds a subtle, celebratory sparkle.
4. Red & Green Velvet Dress
This rich red velvet dress a green velvet top embodies a festive ensemble perfect for evening office Christmas parties. The high-waist skirt elongates the figure, and the fitted top keeps the look structured while embracing seasonal colors.
5. White Floral Gown with Sheer Sleeves
A soft white gown with green floral embroidery looks serene and polished for a Christmas office party. Sheer sleeves add light movement while keeping modest coverage, making it a graceful evening choice.
6. Red Belted Blazer with Wide-Leg Jumpsuit
Wear this tailored red blazer with wide-leg jumpsuit for a semi-formal office Christmas party. The belt defines the waist, and the structured trousers flatter curves while keeping the look professional and festive.
Semi-Formal / In-Office Christmas Parties
7. White and Blue Patterned Knit Dress
An ankle-length knit dress with a high turtleneck offers warmth and structure for daytime office Christmas celebrations. The subtle winter pattern adds seasonal charm while maintaining modesty and polish.
8. White Blouse with Burgundy Sequined Skirt
Balance sparkle with structure by pairing a crisp white blouse with a burgundy sequined skirt. The fit-and-flare silhouette flatters plus-size figures, creating an elegant ensemble for semi-formal office Christmas parties.
9. Green Blazer, White Top, and Red Plaid Skirt
Layer a structured green blazer over a white top and red pleated plaid skirt for a composed, festive look. The pleats move gracefully, while the modest cut ensures office appropriateness.
10. Green Shirt & Red Pants
This green button-up shirt tucked neatly into a vivid red pants for an office-appropriate Christmas party look. The tailored fit of the shirt and high-rise pants flatters curves while keeping the outfit polished. Gold pumps add a subtle festive shine.
11. White Blouse, Grey Cardigan, and Dark Green Pleated Skirt
Neutral layers create a refined look for semi-formal Christmas celebrations at the office. The pleated skirt adds movement, while the ensemble stays modest, polished, and plus-size flattering.
12. Red and Blue Plaid Dress
A long plaid dress with neutral ankle boots creates a cheerful yet modest semi-formal outfit. The structured cut skims curves beautifully, making it ideal for office Christmas parties.
13. Knee-Length Plaid Dress with Tights and Black Shoes
This knee-length plaid dress with opaque tights creates a neat, put-together option for casual office Christmas gatherings. Black shoes maintain modesty and professionalism.
14. Muted Plum Knit Cardigan with Beige Pants
A relaxed, muted plum long knit cardigan layered over a simple top and paired with beige tailored pants. The deep, soft plum tone brings a subtle festive feel while remaining understated, and brown loafers complete the outfit with a polished, smart casual finish — perfect for an office day or a relaxed office Christmas party.
Casual / Low-Key Office Christmas Parties
15. Red and Black Plaid Dress with Belt and Black Boots
A belted plaid dress provides waist definition while maintaining a modest silhouette. Black boots complete a polished, approachable look for casual office Christmas celebrations.
16. Red Winter-Pattern Sweater with High-Waisted Jeans
Pair a red winter-pattern sweater with high-waisted jeans for a relaxed but festive office Christmas party look. The fit enhances curves while keeping the outfit modest, cozy, and cheerful.
17. Navy Knit Dress with White Accents
A modest high-neck, tea-length navy dress with white detailing on the midsection and sleeves. Inner pockets add practicality, and white sneakers keep it comfortable and polished for a casual office Christmas party.
18. Cream Knit Cardigan over Burgundy Dress
Layer a soft cream cardigan over a burgundy dress for warmth and approachable charm. The full coverage and flowing silhouette make this outfit comfortable, modest, and perfect for casual office Christmas celebrations.
19. Red Turtleneck Cardigan with Green Pockets
A red buttoned-up turtleneck cardigan with green front pockets pairs with black thick leggings for a modest, comfortable look. White sneakers complete this casual office Christmas party outfit with ease and festive charm.
20. Navy Dress with White Cardigan
Pair a simple navy dress with a white cardigan for a semi-formal office Christmas party. The A-line fit flatters curves, and the modest neckline keeps the outfit professional and comfortable for all-day wear.
Closing Reflection
“Rejoice in the Lord alway: and again I say, Rejoice.” (Philippians 4:4). Step into your office Christmas party poised, modest, and beautifully dressed. These 20 ensembles combine elegance, comfort, and seasonal charm, allowing you to celebrate Christmas at the office dignifying your body. Let your Christmas office attire reflect not only your personal style but also the joy, gratitude, and celebration that this season represents while honoring your workplace environment.