If you’re planning a 4th birthday, you need invitations that are fun, easy to fill in, and perfect for little guests. This guide highlights five top invitation sets designed for 4th birthday celebrations, including dinosaur, castle, building block, and princess themes. Each option fits standard 4×6 inch cards and includes envelopes for easy mailing or hand delivery. Read on to find the best match for your child’s party style and guest list size.
Summary table of selected products (quick reference)
- YSTEP 4th Birthday Party Invitations – 20 cards + 20 envelopes – 4″ x 6″ – Dinosaur theme
- XZMBQ Four Ever Sweet – 20 cards + 20 envelopes – 4″ x 6″ – Sweet 4th Birthday
- Nezyo 30 Pack Building Block Birthday Invitations – 30 cards + 30 envelopes – 4″ x 6″ – Building block theme
- Tbaogusu Castle 4th Birthday Invitations – 20 cards + 20 envelopes – 4″ x 6″ – Princess theme
- VIVORA 4th Birthday Invitations – 30 cards + 30 envelopes – 4″ x 6″ – Neon designs
YSTEP 4th Birthday Party Invitations

Best for: smaller to mid-sized guest lists with a dinosaur theme. These 4″ x 6″ fill-in invitations include 20 cards and 20 envelopes, making it easy to coordinate a party with friends who love dinosaurs. The coated paper stock helps ink stay clear and legible for handwritten details. Choose this if you want a straightforward, cute design that’s quick to customize.
Why selected: The set provides essential writing space and durable paper, plus a cohesive package that simplifies invitations for busy parents. The dinosaur motif is versatile for both boys and girls.
Caution: Fill-in templates may require pen ink that dries slowly on glossy surfaces; test a small area first to avoid smearing.
XZMBQ Four Ever Sweet Invitations

Best for: kids who enjoy a playful, stylish look with a generic “4th Birthday” theme suitable for both boys and girls. Comes with 20 cards and 20 envelopes in standard 4″x6″ size, ideal for mailing or hand delivery. The bulk value makes it a solid option for larger gatherings.
Why selected: The bulk value and premium card format provide a polished appearance while keeping costs reasonable for bigger guest lists. The universal “4th Birthday” message fits most party themes.
Caution: The design is generic; it may not perfectly fit highly customized party concepts without additional embellishments.)
Nezyo Building Block Invitations

Best for: a construction or STEM-themed party with ample space for details. The cards are double-sided and ~4″x6″ with 30 invitations and 30 envelopes, great for larger family celebrations. The vibrant colors mimic building blocks and blocky visuals that kids recognize.
Why selected: The thicker artwork and glossy lamination help prevent smudging and create a bold look. This set easily accommodates detailed event information on the two sides.
Caution: The design is busy; ensure the text color contrasts well to preserve readability on the glossy surface.
Tbaogusu Castle Princess Invitations

Best for: little girls who love princesses and castle themes. The set includes 20 fill-in birthday invitations with matching envelopes in a compact 4×6 inch size. The double-sided coating makes writing smooth and reduces smudge risk.
Why selected: The princess castle motif appeals to early childhood fantasy, and the size is perfect for sharing essential party details with guests and parents alike.
Caution: The decor-focused design may be less suitable for non-princess-themed parties unless you customize with other add-ons.
pertnate Pink Glitter Invitations

Best for: a cute, glittery invitation set with a playful theme. The 20 cards come with envelopes, and the glitter process adds a celebratory touch that stands out in mailboxes and party piles. Great for black-tetter or glitter party themes.
Why selected: The unique shape and glitter details create a decorative invitation that aligns with party décor and keeps guests excited about the event.
Caution: Glitter accents can rub off on hands or surfaces; consider sealing with a light spray or keeping invites in sealed envelopes while transporting.
VIVORA Neon 4th Birthday Invitations

Best for: bright, eye-catching invites with a neon vibe suitable for bold party themes. The set includes 30 invitations and 30 envelopes, offering versatility for larger guest lists and more decorating opportunities.
Why selected: The double-sided design increases writing space and allows more party details to be included without crowding one side. Neon tones are highly visible in mailings and on party planning boards.
Caution: Neon colors can come across as loud; pair with simpler party décor to maintain balance and readability of text.
Buying Guide: Key Considerations For 4th Birthday Invitations
What size and format work best?
Most sets use standard 4″ x 6″ cards with envelopes, which are easy to mail and fit common print templates. Double-sided designs provide extra writing space, but can require more careful handwriting or printed text to avoid crowding.
What themes appeal to preschoolers?
Popular options include dinosaurs, princess castles, building blocks, and bright neon designs. Choose a theme that matches the party’s decor or your child’s current interests to create a cohesive look from invitation to party day.
How many invitations should I buy?
Plan for the expected guest list plus a small buffer. Sets offering 20 to 30 invitations cover many party sizes. If you anticipate last-minute additions, a larger set may be more convenient and cost-efficient.
What about ink and writing surfaces?
Coated paper stock provides a smooth writing surface, but test your pen to prevent smearing. A thicker cardstock helps handwritten details stay legible and resists ink bleed-through.
Are bulk sets better for parties?
Bulk invitation sets simplify ordering, reduce per-invite costs, and ensure a uniform look. They are especially useful for larger families or communities where you need to invite many children.
Delivery and assembly considerations
Consider whether you’ll mail invitations or hand-deliver them. If mailing, ensure you have standard postage-friendly card sizes and pre-purchased envelopes. Pre-addressing can save time on the day before the party.
FAQ
- What size should I choose for a 4th birthday invitation? A 4×6 inch card is standard and easy to mail or hand out, with enough space for key details.
- Is double-sided design worth it? Yes, it provides extra room for date, time, location, and RSVP details, helping guests avoid missing information.
- Which theme is best for mixed-age plus-one guests? Neutral, colorful designs like neon or generic “4th Birthday” themes work well for diverse groups when you don’t know each child’s interests.
- Should I order more invites than guests? Yes, to cover last-minute additions or misprints. A small buffer helps avoid last-minute runs to the store.
- When should invitations be sent? Aim for 2–3 weeks before the party to allow guests to plan, with digital reminders a week prior if needed.
- Do these invitations include envelopes? Yes, all listed sets come with 20–30 matching envelopes for mailing or hand delivery.
Add a Comment