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Gym King Discount Codes 2026
Save on activewear, training kit and streetwear with the latest Gym King voucher codes and promo codes for the UK
Last updated 26 June, 202620% off with the Gym King NHS and key worker discount
NHS staff, emergency services, teachers, military personnel and other key workers can claim 20% off at Gym King. The discount is unlocked by verifying your eligibility through an approved key-worker portal. Apply your code at checkout once verified.
- Discount: 20% off.
- Terms: Eligible workers only; valid verification required; selected lines only.
Join the Gym King newsletter for 15% off your first order
Sign up to the Gym King newsletter and get 15% off your first order, sent straight to your inbox. You will also hear about new drops and product launches first. Subscribe with your email to claim the welcome discount.
- Discount: 15% off.
- Terms: New subscribers only; valid on first order; exclusions may apply.
Apply this Gym King discount code for 25% off all orders
Reward your loyalty with 25% off all orders at Gym King, one of the biggest standing savings on the page. It applies right across the activewear and streetwear collection. Add the code at the basket to take the quarter off.
- Discount: 25% off.
- Terms: Selected lines; one use per customer; not valid with other offers.
Get 25% off selected streetwear with this Gym King discount code
Lead with 25% off selected Gym King streetwear, including everyday tees, oversized hoodies and joggers. It is built for off-duty looks rather than just the gym floor. Apply the code in your basket to save.
- Discount: 25% off.
- Terms: Selected streetwear only; one use per customer; exclusions may apply.
20% off all orders with this Gym King discount code
This Gym King discount code takes 20% off all orders across the streetwear and training ranges, including joggers, hoodies and gym tops. It applies sitewide with no category limit.
- Discount: 20% off.
- Terms: Valid on all orders.
15% off with the Gym King student discount
Students can save 15% at Gym King after verifying their status through a recognised student verification portal. The discount applies across activewear and streetwear. Verify your details to receive a code for the checkout.
- Discount: 15% off.
- Terms: Valid student verification required; selected lines only; one use per order.
Up to 70% off in the Gym King sale
Shop the Gym King sale and save up to 70% on selected activewear, streetwear and accessories. The sale gathers reduced seasonal styles across the range. Browse the sale to see current markdowns.
- Discount: 70% off.
- Terms: While stocks last; selected lines only; discounts vary by product.
Free standard delivery on Gym King orders over £75
Spend £75 or more at Gym King and your standard UK delivery is free, with free express delivery on orders over £125. It is worth reaching the threshold when stocking up on activewear. Add items to your basket to qualify.
- Discount: Free delivery.
- Terms: Minimum spend of £75 for free standard delivery; UK orders only; express free over £125.
Recently Expired Gym King Voucher Codes
Gym King discount code — 10% off sale items
This Gym King discount code took an extra 10% off sale items. Shoppers applied it at checkout to save on reduced styles.
- Discount: 10% off.
- Terms: Sale items only; while stocks lasted.
20% off online orders with this Gym King discount code
This Gym King discount code gave 20% off online orders across the range. Shoppers entered it at checkout to save.
- Discount: 20% off.
- Terms: Selected lines only; while offer lasted.
Up to 11% off selected orders with this Gym King discount code
This Gym King discount code takes up to 11% off selected orders across the training and streetwear lines. It is a smaller saving for a single-item purchase.
- Discount: 11% off.
- Terms: Valid on selected orders.
25% off orders with this Gym King promo code
This Gym King promo code applies 25% off orders sitewide, from gym staples to streetwear co-ords. It rewards a fuller basket across the collection.
- Discount: 25% off.
- Terms: Valid on orders sitewide.
25% off your activewear order with this Gym King voucher code
This Gym King voucher code takes 25% off an activewear order, reaching across leggings, sports bras and performance tops. It is one of the larger discounts in the current range.
- Discount: 25% off.
- Terms: Valid on activewear orders.
Popular Gym King Discount Codes & Voucher Codes
| Discount Summary | Discount Details | Expiry Date |
|---|---|---|
| 20% off | 20% off with the Gym King NHS and key worker discount | - |
| 25% off | Apply this Gym King discount code for 25% off all orders | - |
| 25% off | Get 25% off selected streetwear with this Gym King discount code | - |
| 25% off | Enjoy a 25% birthday discount with this Gym King discount code | 26 June, 2026 |
| 70% off | Up to 70% off in the Gym King sale | - |
| 15% off | 15% off with the Gym King student discount | - |
| 15% off | Join the Gym King newsletter for 15% off your first order | - |
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More About Gym King
Gym King New Customer Offer
New customers can get 15% off their first order by signing up to the Gym King newsletter, with the code sent straight to your inbox. You will also be first to hear about new drops and product launches. It is worth grabbing a Gym King discount code from this page before you order, as the welcome offer is aimed at first-time shoppers.
Gym King Delivery
Gym King offers free UK delivery once your order reaches the qualifying threshold, with a charge on smaller baskets. There are two free thresholds, one for standard and a higher one for express, so you can choose how quickly your kit arrives. Reaching a free delivery level alongside a Gym King discount code is a simple way to keep the total down.
- Free standard delivery: On orders over £75.
- Free express delivery: On orders over £125.
- Standard delivery: Charged on orders below the threshold.
Gym King Returns Policy
Gym King gives you 30 days from delivery to return items, which must be unworn, unwashed and in their original condition with tags attached. A fixed fee is charged per return through the returns portal, and the original shipping cost is not refunded. Refunds are usually processed within around 14 working days of your return being received.
- Returns window: 30 days from delivery.
- Return fee: £3.49 per order via the returns portal.
- Refund time: Around 14 working days after receipt.
Gym King Student Discount
Students can save 15% at Gym King after verifying their status through a recognised student verification portal. The discount applies across activewear and streetwear. Verify your details to receive a code for the checkout.
Gym King NHS and Key Worker Discount
NHS staff, emergency services, teachers, military personnel and a wide range of other key workers can claim 20% off at Gym King. The discount is unlocked by verifying your eligibility through an approved key-worker portal. Once verified, apply your Gym King discount code at checkout.
How to Use a Gym King Discount Code
At the Gym King checkout, paste your code into the discount field and apply it before paying so the total drops. Codes can exclude sale lines and may need a minimum spend, and some are single-use. If a code is rejected, check it has not already been used or that your basket qualifies.