Top 10 Deadliest Conventional Submarines in 2025 | Ultimate Ranking

We examine the top 10 diesel-electric attack submarines in service in 2023. Rankings are subjective and based on judgement using limited open-source information.

Keywords: SSK, hunter killer, attack submarines, air independent propulsion, air independent power, AIP, lithium-ion battery, Kilo class, Reis class, Invincible class, Lada class, Type 212, Type 214, Scorpene class, Kalvari class, Type 039B, Type 039A, Yuan class, Type 039, Soryu class, Type 039C, Taigei class, modern warships, naval, navy

[EurasiaNaval]

Top X ranking videos always feel like a bit of a cop out. There will be more substantive content next week!

[johnbodman]

I tend to like the modern Russian boats, in both diesel and nuclear. The Russian weapons of all types are practical and durable.

[grampajim]

Finally !! Someone finally recognizes the Taigei as the worlds best sub !!

[marcusfranconium]

And yet forgetting the swedisch and dutch subs . that have been war time proven over the past decades, and wildly acknowledged as the best conventional submarines in the world.

[geopoliticsjunkie]

The underhyped but always potent conventional. Great rundown in 15 minutes. .

[jwt]

I like your ranking very much, I hope to see the rankings of frigates, nuclear-powered submarines, military drones, fighter jets, military helicopters, etc. in the future

[djtan]

A very highly advanced one u missed out is d US’ f 35 class…

[seabass]

Little surprised to not see the South Korean Dosan Ahn Changho. Any idea where that would fit?

[hermosoloremalaga]

You forgot Spain S 80 submarine. The first one is already built and it Will enter in service in November of this year.

[brunol-p_g]

7:28 the Scorpene wasn’t jointly developed by France and Spain, it was developed by France. The first hulls were jointly built by France and Spain.

[briansparks]

This list should include the Dutch Walrus class even though it is an older design.

[SoldierIberian]

Anda the spanish s80.submarine?? With 3 weeks with her hidrogen sistem??

[johnsmithx]

*Wow, Japan has 2 of the 3 tops spots!*

[lydioconception]

Soryu class are on the list
JMSDF made more submarines to counter China

[sai]

Why would you still include those loud KILO submarines w/c was easily detected and tracked UK BTG escort on SCS back in 2021?

[미묘-mh]

Wasn't Taigei a test bed? like the China navy Qing class

[ronbefree]

How about the effectiveness of their sonar??

[chrisdoulou]

In what universe does the Australian Collins class not appear in the top 10, let alone the top 3?

It’s the largest diesel electric submarine in service and has the combat management system of the Virginia class. It actually bridges the capabilities of an SSK & an SSN, being used in many of the same roles as the USN Virginias.

[mohamedayman]

You forgot the most modern one the F35

[Xiaojian]

Only small information, how can chinese 039c is ranked no.2?