A kayak is a significant investment, and an easy target for thieves if left unattended. Whether you’re securing your kayak to a roof rack, a dock, or a storage rack at home, a good kayak lock is one of the simplest and most effective ways to protect it.
Kayak locks come in two main forms: cable locks which loop through scupper holes or around the hull, and locking systems designed specifically for kayaks with dedicated attachment points. Most are lightweight enough to carry in your hatch on every paddle.
We’ve reviewed 6 of the best kayak locks to help you find the right one for your setup.
1. Lasso Tandem Kayak Security Cable – Best Overall
The Lasso Security Cable is the most versatile kayak lock on this list. The 4.9m (16ft) cable is long enough to secure most touring and tandem kayaks, and the 140cm loop size fits around most hull shapes without difficulty. The tamper-resistant barrel combination lock requires no key, which eliminates the risk of losing one on the water.
The braided steel construction resists cutting, and the protective coating prevents scratches on the hull surface. A practical all-round lock for paddlers who need a reliable, no-fuss solution. Priced at around USD$40 to USD$60 (AUD$55 to AUD$85).
What We Liked
- 4.9m cable suits most kayak sizes
- Tamper-resistant barrel combination lock
- No key required
- Fits most hull shapes
- Durable braided steel construction
What We Didn’t Like
- Bulkier than shorter cable alternatives
2. DocksLocks Coiled Security Cable Lock – Best for Storage
The DocksLocks Coiled Security Cable is the best option for paddlers who store their kayak at a marina, dock, or fixed storage point. The coiled design stores compactly without tangling and extends to 3m (10ft) when deployed. The steel coil with plastic coating provides good corrosion resistance in saltwater environments.
The combination lock is straightforward to use and the compact storage size makes it practical to carry in a hatch or PFD pocket on every paddle. Priced at around USD$30 to USD$50 (AUD$40 to AUD$70).
What We Liked
- Coiled design stores without tangling
- Compact and easy to carry
- Good corrosion resistance
- Combination lock requires no key
- Practical for marina and dock storage
What We Didn’t Like
- 3m cable shorter than some alternatives
- Best suited to fixed storage points rather than roof racks
3. Seattle Sports Cradle Cable Lock – Best for Roof Racks
The Seattle Sports Cradle Lock is the best option for securing a kayak to a roof rack or vehicle. The 6.1m (20ft) galvanised steel cable with vinyl sheathing is long enough to loop through the kayak and around the roof rack crossbars multiple times, providing a more secure attachment than shorter alternatives.
Compatible with most cradle mounts and car roof rack systems, it comes with two keys for backup. The galvanised steel construction handles outdoor exposure and saltwater conditions well. Priced at around USD$40 to USD$60 (AUD$55 to AUD$85).
What We Liked
- 6.1m cable suits roof rack and transport use
- Galvanised steel construction
- Vinyl sheathing protects hull
- Two keys included
- Compatible with most roof rack systems
What We Didn’t Like
- Longer cable adds bulk when not in use
- Key lock requires keeping keys accessible
4. Thule 538XT 6-Foot One-Key System Cable Lock – Best for Sit-On-Top Kayaks
The Thule 538XT is the best lock on this list for sit-on-top kayaks. The 1.8m (6ft) braided steel cable with rubber coating threads easily through scupper holes, which is the most practical locking method for sit-on-top designs. The protective cover keeps sand and debris out of the lock mechanism — a useful feature for kayakers who launch from beaches.
The One-Key System allows the lock to be keyed the same as other Thule products, reducing the number of keys needed for your outdoor gear. Priced at around USD$30 to USD$45 (AUD$40 to AUD$65).
What We Liked
- Fits through scupper holes on sit-on-top kayaks
- Sand-resistant protective cover
- Rubber coating protects hull
- One-Key System compatibility
- Compact 1.8m cable
What We Didn’t Like
- 1.8m cable too short for touring kayaks
- Key lock requires keeping keys dry and accessible
5. Master Lock Python Adjustable Cable Lock – Best Budget
The Master Lock Python is the most affordable lock on this list and a practical choice for recreational paddlers who want basic security without spending a lot. The 1.8m (6ft) vinyl-coated cable resists wear and corrosion, and the adjustable design allows the cable length to be customised for different locking scenarios. Velcro straps manage any excess cable to keep it compact during storage.
Two keys are included as backup. A straightforward, reliable lock from one of the most trusted security brands available. Priced at around USD$20 to USD$30 (AUD$28 to AUD$42).
What We Liked
- Most affordable option
- Trusted Master Lock brand
- Adjustable cable length
- Velcro straps for cable management
- Two keys included
What We Didn’t Like
- 1.8m cable suits smaller kayaks only
- Basic security compared to braided steel alternatives
6. Suspenz Universal Kayak Locking System – Best Dedicated Lock
The Suspenz Universal Kayak Locking System is the only purpose-built kayak lock on this list. Two separate cables with loops at each end wrap around both ends of the kayak before being secured at a central locking point. This design holds the kayak more securely than a single cable looped through one point and is less likely to allow the kayak to be lifted off a rack.
Suitable for kayaks up to 4.3m (14ft). A padlock is not included and must be purchased separately, which adds to the overall cost but allows you to choose your preferred lock type. Priced at around USD$40 to USD$60 (AUD$55 to AUD$85).
What We Liked
- Purpose-built kayak locking design
- Two cables secure both ends of the kayak
- More secure than single-point cable locks
- Suits kayaks up to 4.3m (14ft)
- Works with most padlock types
What We Didn’t Like
- Padlock not included
- Less versatile than cable locks for transport use
What To Look For In A Kayak Lock
Lock Type
Cable locks are the most common and versatile option — they loop through scupper holes, around handles, or through the hull to secure the kayak to a fixed object. Dedicated kayak locking systems like the Suspenz are designed specifically for kayaks and provide a more tailored fit, but are less flexible in where they can be used.
Key locks are faster to open — no code to remember — but you need to keep the key safe and dry. Combination locks are slightly slower but eliminate the risk of losing a key.
Cable material and thickness
Look for galvanized steel cable at least 6mm thick — thin cables can be cut with basic tools. A vinyl or rubber coating protects your kayak’s hull from scratches and helps the cable resist corrosion in wet conditions.
Cable length
A 3-metre (10-foot) cable covers most locking situations for a single kayak. If you have a touring kayak or need to lock two kayaks together, look for something in the 5-metre (16-foot) range. The Lasso and Seattle Sports locks on this list both offer longer cables for this reason.
Where you’ll be locking it
Think about your most common locking scenario before you buy. Locking to a roof rack needs a shorter cable than securing to a dock or post. If you store your kayak on a wall rack at home, a dedicated locking system like the Suspenz may be the better fit.
Read: How To Lock a Kayak and Keep It Safe
Final Thoughts
Any of the six locks reviewed above will provide solid protection for your kayak. Our top three picks are:
- Lasso Tandem Kayak Security Cable — best overall, with a 16-foot cable long enough for touring kayaks and a tamper-resistant barrel lock
- Seattle Sports Cradle Cable Lock — best for roof rack storage, with a 20-foot cable and two keys included
- Suspenz Universal Kayak Locking System — best dedicated kayak lock, designed specifically to secure both ends of the boat
A cable lock is only as strong as what you lock it to — always secure your kayak to something fixed and solid, not just to another piece of gear.
For more on kayak security and storage, read our guides on how to store a kayak and do you need a kayak rack.