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20% off with UNiDAYS with this Diesel Deal

Expires on 31/12/2026

10% off for Key Workers at Diesel

Expires on 31/12/2026

30 day statistics: 1 New deals added • 0 tested manually • Last modified on 20/03/2026

Test These Diesel Discount Codes & Deals which just expired

Sometimes these Diesel vouchers still work after they expire.

25% off Orders at Diesel

Diesel Savings: 40% off Denim Range

Diesel Savings: 20% off Sale Items

Save with 10% off your First Order

Receive 15% off in the Boxing Day Sale with this Voucher

Diesel Discount: Extra 20% off

Get Extra 20% off on SS25 in the Sale at Diesel

Limited Time Only: 20% off Clearance Products

Get 10% off with Newsletter Sign-up at Diesel

15% off Wintery Selection

Up to 50% off in the Sale when you redeem this Offer

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Take 20% off with Mobile App at ASOS

Expires on 31/12/2026

Grab £8 off

Expires on 23/02/2027

Save Now: 20% off

Valid until further notice

10% off at The Ordinary

Expires on 31/12/2026

Information and advice about this shop

Diesel logo

See how we find our codes. 

If you’re curious about how we find our Glamour voucher codes, look no further. You can see how our team finds you savings in our process guide

Why we love Diesel: 

Having been founded by Renzo Rosso back in 1978, Diesel is rooted in denim mastery and a cult favourite amongst editors and fashion fans. Since 2020, the brand's collections have been overseen by creative director Glenn Martens, where apparel, accessories and a wide range of lifestyle collaborations (think: fragrances, watches and jewellery) take centre stage. 

Our favourite products at Diesel:

I'm loving Diesel's latest Your Life in D campaign – which is dedicated to the brand's iconic denim during every stage of life. The cult brand stocks relaxed jeans, bootcut jeans, flared jeans – and more divisive styles like skinny and low rise jeans. Would you dare? They're also hot on the cool-girl jorts trend which everyone in London is wearing this season. Their long denim shorts are responsibly made, and you can get 10% off your first order. 

Diesel FAQs

How can I redeem my Diesel discount code?

  1. Look for the code in our listings that is best suited to your Diesel order

  2. Click ‘get discount’ and then hit ‘copy’ to copy the code

  3. Head back to the Diesel website and continue through to the cart as you normally would

  4. On the right side of the shopping bag page, locate the ‘add a promo code’ box above your order subtotal

  5. Click + to expand

  6. Paste your code in the box provided

  7. Hit apply, and your new order total will be displayed below

What can I do if my code isn’t working?

  • Ensure the formatting has been done correctly. Wrongly entered codes are the number one reason for a code not working properly

  • Take a look at the code’s expiry date and make sure it’s still valid

  • Make sure the code you’re using can be applied to the items in your basket. If not, go back to our listings and choose another

Is there a Diesel sale section?

There is! Shop Diesel’s latest sale with up to 50% off statement denim, oversized logo tees and Y2K-inspired accessories that’ll have you front row ready—even if it's just for brunch. The catch? The discount’s members-only, so you’ll need to sign up before you check out.

Is there a Diesel Black Friday discount?

Yes! Last Black Friday, Diesel was offering up to 40% off, but there’s a catch: the discount’s exclusive to members, so make sure you’re signed up before you hit checkout. Expect deals on signature denim, leather staples and trend-forward pieces with that unmistakable Diesel edge. Want to widen your search? Stockists like About You and ASOS were also running seasonal offers, and you might just spot different styles, or better prices, if you’re quick.

Can I find loyalty discounts at Diesel?

You can! The Diesel Loyalty scheme at House of Diesel means shoppers can collect points every time they shop or take part in community events, plus you’ll also get exclusive benefits and deals sent to your inbox. If you’re a big Diesel fan, D:CODE is your backstage pass to the good stuff. We’re talking exclusive gifts, early access to new collections, and invites to members-only events that feel more like fashion insider moments than sales. You’ll also get first dibs on discounts with early sale previews. Signing up is free, fast, and worth it if you’re a regular shopper.

Can I get a Diesel student discount?

Absolutely! Students can get 20% off almost all full-priced items by signing up for UNiDAYS. To benefit from the discount, search for the UNiDAYS code on your app or desktop, copy the code and paste it as you would a discount code. It’s that simple!

Is there a Blue Light discount?

Yes! Key Workers get 10% off everything at Diesel.

Can I benefit from subscribing to the Diesel newsletter?

Yes! When you sign up for the Diesel membership programme, you’ll receive 10% off your first order. Plus, signing up ensures you won’t miss out on any deals as they’ll be sent directly to your inbox!

Can I get gift cards at Diesel?

Absolutely. Whether it’s for a last-minute birthday or a luxe treat-yourself moment, Diesel’s digital gift cards are a stylish solution. Choose from £50 to £1,500, sent straight to their inbox. Even better? Unused gift cards can be returned for free. No stress, just gifting sorted in seconds.

What is the Diesel returns policy?

You’ve got 30 days from delivery, or pick-up in store, to return your Diesel.com order, completely free. You can do it online, via Client Services, or in a Diesel flagship store. Just make sure everything’s in original condition with tags attached. Print your return label, pack it up, and you’re good to go. Quick tip: refunds are processed after a quality check, so hang tight while it’s confirmed.

Is there a Diesel price match policy?

No, there is no price matching.