Soviet submarines and their namesakes:
Project 971 Shchuka-B - Pike - NATO: Akula
Project 667BDRM Delfin - Dolphin - NATO: Delta IV
Project 667AU Nalim - Burbot - NATO: Yankee
Project 941 Akula - Shark - NATO: Typhoon
Project 865 Piranha - NATO: Losos
Pike is a nuclear attack submarine, Dolphin, Burbot and Shark are nuclear ballistic missile submarines, and Piranha is a diesel-electric midget submarine.
The curious parallel between both Akulas apparently was entirely coincidental, and ever since has been a source of confusion among both submarine enthusiasts and experts.
Overall I like the original names more, but I gotta say, the Delta IV is the only one where I’d rather stick with the NATO name.