A class or A-class may refer to:

• CIÉ A class or CIE 001 Class, a 1955 class of Co-Co diesel locomotives used by Córas Iompair Éireann (The Irish Transport Company)
• NZR A class (1873), a class of steam tank locomotives operated by the New Zealand Railways Department
• NZR A class (1906), a class of steam tender locomotives operated by the New Zealand Railways Department
• V/Line A class, a class of diesel locomotives that operates in Victoria, Australia
• Victorian Railways NA class, a class of narrow-gauge (hence "N") steam tank locomotives
• WAGR A class (diesel), locomotives of the Western Australian Government Railways

• A-class Melbourne tram, a single-unit bogie tram that operates in Melbourne, Australia

• A-class destroyer (1913), heterogeneous group of British torpedo boat destroyers built in the mid-1890s
• A-class destroyer (1929), British destroyers of World War II
• A-class torpedo boat, German torpedo boats of World War I
• A-class submarine (disambiguation), several classes of submarines
• A-class minehunter, ships of the Turkish Navy
• International A-class catamaran, a development class sailing catamaran for singlehanded racing
• International A Class, a class of radio-controlled sailing yacht

• A Class (album), studio album by South Korean girl group miss A
• A-segment, a European vehicle size class
• Mercedes-Benz A-Class, a range of subcompact hatchbacks and sedans
• A class (schools), system of categorizing school for sport competitions

• Class A (disambiguation)
• A type (disambiguation)
• A series (disambiguation)
• Class (disambiguation)

This disambiguation page lists articles associated with the title A class.
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