Top 10 Fountain Pens under £100 in 2025


Hey there! If you are looking for a brilliant fountain pen that won’t break the bank, you’re in the right place. We have rounded up top 10 fountain pens under £100. Fantastic designs, impressive ink capacities, and solid performance from brands like TWSBI, Opus 88, Diplomat, Kaweco, Sailor, Stipula, Waterman and Lamy.

Top 10 Fountain Pens under £100 in 2025 Animated gif of a man using a fountain pen

1) TWSBI VAC 700R

These fantastic Taiwanese pens have some very nice colourways, including some great bi-colour nibs and have the capacity to hold an impressive amount of ink using the vacuum filling system. Order your TWSBI VAC 700R here.

2) Opus 88 – Koloro

Opus 88 offer many fountain pens that just miss out on the “under £100” bracket, however, their Koloro fountain pens, which feature a Jowo #5 nib are certainly eye-catching looking pens which can hold an enormous amount of ink thanks to the Japanese eye-dropper filling system.

3) Diplomat Viper Fountain Pen

Technically this one isn’t under £100, but it’s included as it’s not over £100. Bang for your buck is definitely something you get with this hooded-nibbed addition. Like many pens from the German outfit Diplomat, the Diplomat Viper fountain pen is a robust all metal fountain pen, this one though, features a guilloche engraved snake-like pattern. There’s just one nib size – a Fine-Medium – but it’s certainly a good one.

4) Kaweco Piston Sport Classic

There’s many pen from Kaweco that could have made this list, but we’ve opted for the Piston Sport Classic. The Sport is an iconic, timeless design, that is both compact and practical. The Piston Sport has a comfortably larger ink capacity to the regular sport.

5) Sailor TUZU Adjust Fountain Pen

This one could comfortably fit in the under £50 category, but it’s made the list nevertheless. The pen has a lefty-friendly adjustable nib angle feature and comes with a converter and some stylish packaging – all for £35! Buy your Sailor TUZU Adjust here.

6) Stipula Speed

From Florence, Stipula offer some fantastic pens with some interesting nib choices. The Speed is certainly eye catching design, seemingly taking it’s inspiration from Italian sports cars. The elliptical magnetic click cap and smooth nib make this a great entry with enough money left to add some nice inks, paper or a pen case. You can order it here.

7) Lamy Studio

With some fantastic colours in the range, Lamy Studio fountain pens are fantastically well-made, all metal pens which offer a great writing experience. The iconic propeller clip on the cap make for a classy looking pen that will never go out of fashion.

8) Lamy Scala

Another entry into the list from Lamy, but it’s hard to ignore this Bauhaus inspired design. Lamy offers a number of other models could have easily made this list too – Aion, CP1, AL-star and Safari but to mention a few. You can order one here.

9) TWSBI Diamond 580

The Diamond 580 is available in a few iterations, such as AL, ALR and even Mini, all of which nestle nicely under £100. These piston fillers are a little heavier and sturdier than TWSBI’s Eco range and the nibs are faultless.

10) Waterman Hemisphere

A classic design and an excellent pen for those who like a slimmer pen. Available in Black or Chrome, with a gold or silver trim, this is an elegant looking pen. You can order your Waterman fountain pen here.