Your Trusted DC Wedding Planner
Elegant, Seamless, and Guest-Focused
Planning a wedding in Washington, DC comes with its own challenges — from family expectations to navigating permits and out-of-town guests. At O’Neil Events, we specialize in creating elegant, timeless celebrations that honor tradition while reflecting your personal style. With 15+ years of experience as a DC wedding planner, we’re here to make sure your planning feels calm, organized, and stress-free.

You’re juggling careers, family input, and way too many details
Most DC couples we work with are managing demanding jobs, out-of-town guests, and family members who (lovingly) want to weigh in on every decision. Add in the logistics of multi-day events — rehearsal dinners, ceremonies, brunches — and the stress can build fast.
You don’t want to spend your engagement buried in spreadsheets or worrying if someone remembered the transportation schedule. And you definitely don’t want your parents or friends running around troubleshooting on your wedding day.
What kind of help are you leaning towards?
“Working with O’Neil Events was the best thing I did to plan my wedding! Colleen and her team are incredible- she made the entire wedding process seamless and smooth! Colleen helped turn my visions into a reality for my wedding- she is beyond organized and kept me on track while planning through it all! We couldn’t be more thankful O’Neil Events! You will not be disappointed!”
– Layla







O'Neil Events has been featured in Bethesda Magazine. O'Neil Events has been featured in Style Me Pretty. O'Neil Events has been featured in Charm City Wed. O'Neil Events has been featured in Washingtonian. O'Neil Events has been featured in United with Love. O'Neil Events has been featured in The New York Times. O'Neil Events has been featured in Tassels & Tastemaker. O'Neil Events has received many awards from organizations such as WeddingWire and TheKnot.
We’re your calm in the chaos.
As a DC wedding planner, we know the ins and outs of the city — from iconic venues on the Hill to tucked-away Georgetown gardens. We’ve built strong vendor relationships and mastered the details so you don’t have to.
With O’Neil Events, you’ll:
Save time with curated, trusted vendor recommendations.
Feel supported with calm, honest guidance (we’ll tell you what’s worth it, and what’s not).
Keep family dynamics smooth with a steady hand managing behind the scenes.
Celebrate fully, knowing your guests are cared for and every event flows seamlessly.
We offer two clear paths: Full-Service Wedding Planning for couples who want a partner from day one, and Month-of Coordination for couples who want to hand things off when it matters most.

Hi, I’m Colleen —
Born & Raised Washingtonian, Calm Under Pressure
I know DC like the back of my hand. From Capitol Hill venues to private estates in Potomac, I’ve planned it all. I bring local expertise, trusted vendor relationships, and the kind of calm presence you’ll want in the room when timelines and family dynamics collide.
Before weddings, I was a Division I lacrosse player — so yes, I thrive under pressure, know how to run a team, and will always keep things moving with strategy and grace. Combine that with over 15 years of planning experience, and you’ve got someone who knows how to balance elegance with practicality.
✨ Fun Facts:
I run on Diet Coke (large, always).
Dessert is non-negotiable — every meal deserves it.
I’ll plan your rooftop photo session but won’t look down (heights are not my thing).
My toddler and cats keep me on my toes — and remind me daily that staying calm matters.
Shoes are my love language (hence the background photo)


You want a wedding that feels intentional, welcoming, and stress-free
You’re here because:
You want to celebrate with family and friends, not manage logistics
You want a planner who understands DC’s venues, permits, and vendors
You want someone who can balance tradition with your modern vision
You want peace of mind knowing your guests will feel cared for from start to finish
That’s exactly what we deliver.
Your DC wedding, handled with elegance and ease
We’re currently booking:
2026 weddings: limited dates remaining
2027 weddings: now open
Let’s make your wedding seamless, stress-free, and unforgettable — so you can focus on what matters most.

ABOUT
O’Neil Events is a trusted DC and NYC wedding and event planner, known for elegant weddings, seamless corporate events, and stylish social celebrations — all delivered with calm expertise.
Couples, companies, and families across Washington DC and New York City count on us for personalized celebrations and flawless coordination delivered with calm expertise (and just the right dash of personality).

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We are honored to be able to work with such talented photographers. Here are some photographers who have been featured on this website: getreadyphoto.com, ootwig.com, barbarahperttula.com, carlyrosephotography.com, hunterryanphoto.com, laurenlouisecollective.