Welcome
At O’Neil Events, we believe wedding planning should feel effortless, not overwhelming. As a trusted wedding planner in DC and a sought-after wedding planner in New York City, couples rely on us for creating elegant, personalized celebrations with calm, expert guidance.
From the moment you say “yes” to your final dance, we’ll be by your side—managing every detail with care so you can truly enjoy your day, your guests, and your love story.
Let’s make your wedding planning experience seamless, stress-free, and unforgettable.

Why Couples Love Working with Us
✨ Personalized, upbeat support – Our team is known for our responsiveness, positive energy, and unwavering commitment to making your planning experience enjoyable.
✨ Expert guidance, tailored to you – Whether you need full planning or expert coordination, we take the stress off your plate so you can savor this special time.
✨ Insider access to the best – With over a decade of existence wedding planning in Washington, DC, and NYC, we’ve built relationships to bring your vision to life.
Meet the Owner – COlleen
If you’re looking for a wedding planner who’s organized, fun, and ready to make your big day stress-free, you’ve found her! I’ve been planning weddings for over a decade, and there’s nothing better than seeing my couples soak in the joy while I handle the behind-the-scenes magic.
I’m a DC native with deep industry connections, but NYC is in my blood! My mom grew up in the city, and I spent holidays and school breaks there with my grandparents. Whether you’re dreaming of an elegant DC soirée or a chic NYC celebration, I’ve got the insider knowledge to bring your vision to life.
Fun Facts About Me
Crazy cat lady (My furry assistants may crash our Zoom calls.)
Diet Coke addict
Bravo fan
Why Work With Me?
✨ I keep things stress-free. You enjoy, I handle the details.
✨ I know the best vendors. From florists to photographers, I’ll hook you up.
✨ I love what I do. Your joy is my joy—simple as that.

CONSULT WITH US
Communication is everything—and we take it seriously. Whether you’re looking for a wedding planner in DC or a wedding planner New York City couples trust, our first priority is to listen. We want to understand your vision, values, and every detail that matters to you. No request is too small or too bold. Let’s start the conversation and bring your dream wedding to life—beautifully and seamlessly.
100% 5 Star Reviews
Read what our satisfied clients have to say about their fantastic experiences with our Washington, DC and NYC wedding planners. The common theme is that they all felt supported and taken care of by our dedicated organizational experts who were not only super responsive and always one step ahead of them in the details, but who truly cared about them and the smooth execution of their special day.

SO SWEET & CARING
My husband and I said SEVERAL times how having Colleen by our side as a Day Of Planner was way beyond worth the money spent. If I have one recommendation for any newly engaged couples, it’s have a day of planner. From the beginning just getting coffee with us and helping us start the process or planning, to every living detail of the day of… I can’t imagine our big day without her. She was immensely professional. So sweet and caring; yet I knew she’d get done what needed to be done. She’s no pushover! Monthly emails and check ins were lovely and kept us on track. But then the month leading up to the wedding, Colleen took everything off my plate and handled all the logistics and vendors and timelines.
So, so valuable. Thank you for everything you did! We’ll both never stop raving about you. 🙂
{Amy}



THE FAIRYTALE I DREAMED OF
O’Neil Events came highly recommended to us by our caterer, and hiring them was one of the best decisions we made for our wedding! Yvi & Colleen were both responsive via email and easy to work with. The month of our wedding, Yvi took everything over and was positively wonderful! She contacted all of my vendors and was able to coordinate things behind the scenes that I didn’t even know about. If anything went wrong, I was completely oblivious to it because it was handled! She was organized and on top of everything that day and helped to create the fairy tale I had dreamed of!
If there’s one piece of advice I will give to any future bride who asks, it is the value of hiring an excellent day-of-coordinator. Our wedding party and families (as well as us) were able to just relax and enjoy taking in the entire day with the knowledge that Yvi had everything handled. I definitely gained a new friend through the experience!
{Megan}

WE WERE IN SUCH GREAT HANDS
From the minute we met our wedding coordinator, we knew she would be our biggest ally on our wedding day. But we owe her a debt of gratitude for just how much she did — before, during, and after. Everything we conceptualized came to fruition because of her, and never did we feel like we were flying solo. She championed our whims while making sure everything was practical and achievable.
We were in such caring, diligent hands, even when it came to things we forgot, She handled everything with ease, grace, and most incredibly, a smile on her face. She kept everyone in line from start to finish, vendors and family members and the bridal party. Her energy, her excitement, her sheer passion for what she does helped us create and execute a truly perfect day.
{Nick}


Your Wedding, your way
Do you have special customs or traditions you’d love to include in your ceremony or reception? Dreaming of a unique theme that reflects your story? Whether you’re working with a wedding planner in DC or looking for a wedding planner New York City couples trust, we’re here to bring your vision to life—seamlessly, beautifully, and without a hitch. With O’Neil Events, your imagination sets the tone—and we’ll take care of the rest.
Seamless Planning
WITH PEACE OF MIND
Seamless planning is our goal for you, the couple. Don’t let yourself become overwhelmed with questions from family and friends, just let them know that everything is under control because O’Neil Events has your back. Your wedding day is your day and we take care of every tiny detail necessary to make it unforgettable.








ABOUT
O’Neil Events is a trusted wedding planner in DC and a top wedding planner New York City couples rely on—known for elegant, personalized celebrations and seamless coordination delivered with calm expertise.

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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.