Best Mars Bars Box Deals Online in the UK (10 Deals Found)

Last Updated - 24/09/2026 Sort By:

Best Choice
SHANZA DEPARTMENTAL'S

New
Mars Chocolate Bars Milk Chocolate Bulk Gift Treat Office Box 51g Pack Of 24 Bars
Each Mars bar features the iconic blend of creamy milk chocolate, soft nougat, and rich caramel, offering a timeless tas

£21.98 £22.99
Best Value
SweetiePost

New
Mars bar chocolate gift box present hamper selection treats
Delicious Full Sized Bars, Never Price Marked

£13.99
Parkers

New
Mars Bar 24 x 51gm (2)
Classic Flavor: Enjoy the iconic taste of Mars Bar, combining nougat, caramel, and milk chocolate for a delightful treat

£39.51
Mars

New
Mars Mixed Milk Chocolate Bars Variety Bulk Multipack Box, 30 Pcs 1.37kg
CHOCOLATE BARS VARIETY BOX – Includes a mix of popular favourites: M&M’s, Snickers, Twix, Bounty and Maltesers in one bu

£27.49
Mars

New
MARS Caramel & Milk Chocolate Bars 32*51g, Brown, Brown

£29.99
Mars

New
Mars Fruit and Nut Milk Chocolate Bars Bulk Sweets Multipack Snack 18x40g
Fruit and Nut Core - Packed with sweet date paste, roasted peanuts, and rich raisins providing over seventy-five percent

£18.99
17% Off
Mars

New
Mars Salted Caramel Protein Bar – 12 × 57g – 18g Protein, Low Sugar (2g), High‑Protein Chocolate Snack for Gym, Work & O
✔ 18g High‑Quality Protein A delicious high‑protein bar delivering 18g of protein — ideal for post‑workout recovery or a

£19.99 £23.99
Mars

New
Mars Mixed Milk Chocolate Fun Size Variety Bulk Party Bag, 71 Bars 1425g
ULTIMATE CHOCOLATE ASSORTMENT: Get the best of the best with 71 fun-size bars in one 1425g bag. This bulk variety pack i

£17.75
11% Off
Parkers

New
Mars, Kinder, Cadbury and Nestle Chocolate Bulk Buy (Kit Kat 4 Finger 24 x 41.5g Box, (1 Pack))
We're all about those breaks. And the best breaks start with these classic bars of crispy wafers coated in smooth milk c

£18.29 £20.47
34% Off
Mars

New
Mars Protein Caramel Nougat Milk Chocolate Snack Bars Multipack, 18x50g
HIGH PROTEIN FUEL - Boost your daily intake with 18g of premium protein per bar to accelerate muscle repair and support

£26.90 £40.50

10 Mars Bars Box deals are available from: Amazon stores, starting from £13.99.
The biggest discount we found is 34% on Mars Protein Caramel Nougat Milk Chocolate Snack Bars Multipack, 18x50g at Amazon.
The lowest price we found is £13.99 while the highest is £39.51.
Prices for the best Mars Bars Box deals average at £23.49.
Last updated on September 24, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Mars Bars Box.