Cutting a watermelon should be easy, not frustrating. But if you’ve ever struggled with a dull kitchen knife or ended up with uneven slices, you know how tricky it can be. The right knife makes all the difference—giving you smooth, clean cuts without the mess.
To help you out, we’ve rounded up the best watermelon knives in 2025, from large serrated blades to handy slicers designed just for melons. Whether you want perfect wedges for a party or quick chunks for snacking, these knives will make prep faster and easier.
1. The Original Melon Knife – Kuhn Rikon
- Price: $19.95
- Blade Length: 11 inches
This knife is as fun as it is functional. With its bright melon-themed design and sharp serrated Japanese stainless steel blade, it slices through tough rinds effortlessly. It also comes with a protective case, making storage safe and simple. Plus, it’s dishwasher-safe for easy cleaning.
Why people love it: Its size and sharpness make it perfect for tackling even the largest watermelons without struggle.
2. Stainless Steel Watermelon Knife – Good Cook
- Price: $9.95
- Blade Length: 15.5 inches
If you like something big and rugged, this extra-long watermelon knife has you covered. Its serrated stainless steel blade is designed for tough melon skins, and the molded handle keeps your grip secure. The playful designs on the blade are just an added bonus.
Why people love it: Affordable, durable, and powerful enough to handle whole melons with ease.
3. Heavy Duty Watermelon Slicer – ScharfPro
- Price: $10.95
- Blade Length: ~10.5 inches (curved)
This slicer is a clever two-in-one tool. Its curved serrated blade cuts directly into the melon, and the design doubles as tongs so you can lift out perfect slices without touching them. A small metal tip helps you cut right up against the rind. Dishwasher safe for quick cleanup.
Why people love it: Less mess, easy serving, and great for making neat watermelon cubes.
4. Multi-Use Melon Slicer – Dexas
- Price: $24.95
- Blade Length: 11 inches
Built from carbon stainless steel with a non-stick finish, this slicer is sturdy and efficient. The large blade makes quick work of big watermelons, while the ergonomic handle keeps it comfortable to use, even for longer cutting sessions.
Why people love it: Its versatility—it works well not just for watermelons but for other large fruits too.
5. Rounded Watermelon Slicer – NEX
- Price: $16.99
- Blade Length: 13 inches
This isn’t your typical knife—it’s a rounded slicer with multiple sharp edges. Made from stainless steel, it’s designed to cut watermelon into clean sections in just a few motions. Some users recommend halving the melon first for the best results.
Why people love it: When used properly, it slices quickly and evenly, though it takes a little practice.
6. Maestro Wu G14 Watermelon Knife (Wooden Handle)
- Blade Dimensions: 385 × 47 × 2.0 mm
- Handle Length: 115 mm
- Overall Length: 500 mm
- Weight: 277 g
Handcrafted with Maestro Wu’s signature quality, this long-bladed watermelon knife easily handles large fruits. The wooden handle provides a comfortable grip, and the impressive blade length means you can cut even the biggest melons in one clean stroke. Click this link to buy Maestro Wu G14 watermelon knife.
Why people love it: A traditional, durable design that’s equally functional and beautiful.
