Category:Narrow gauge railways in the United Kingdom

• Narrow gauge railways in England (30 C, 2 P)
• Narrow gauge railways in Northern Ireland (2 C)
• Narrow gauge railways in Scotland (13 C, 3 P)
• Narrow gauge railways in Wales (25 C, 3 P)

0–9

• 9 in gauge railways in the United Kingdom (1 C)
• 7¼ in gauge railways in the United Kingdom (3 C)
• 10¼ in gauge railways in the United Kingdom (2 C, 1 P)
• 12 in gauge railways in the United Kingdom (1 C)
• 8 in gauge railways in the United Kingdom (1 C)
• 15 in gauge railways in the United Kingdom (4 C)
• 18 in gauge railways in the United Kingdom (1 C)
• 20 in gauge railways in the United Kingdom (1 C)
• 21 in gauge railways in the United Kingdom (1 C)
• 1 ft 11 in gauge railways in the United Kingdom (1 C)
• 12¼ in gauge railways in the United Kingdom (2 C)
• 1 ft 11½ in gauge railways in the United Kingdom (2 C, 1 P)
• 1 ft 10¾ in gauge railways in the United Kingdom (2 C)
• 1 ft 11¾ in gauge railways in the United Kingdom (1 C)
• 600 mm gauge railways in the United Kingdom (1 C)
• 2 ft gauge railways in the United Kingdom (3 C, 1 P)
• 2 ft 2 in gauge railways in the United Kingdom (1 C)
• 2 ft 3 in gauge railways in the United Kingdom (3 C)
• 2 ft 4 in gauge railways in the United Kingdom (1 C)
• 2 ft ½ in gauge railways in the United Kingdom (1 C)
• 2 ft 6 in gauge railways in the United Kingdom (3 C, 2 P)
• 2 ft 4½ in gauge railways in the United Kingdom (1 C)
• 800 mm gauge railways in the United Kingdom (1 C)
• 2 ft 8½ in gauge railways in the United Kingdom (1 C)
• 3 ft gauge railways in the United Kingdom (4 C, 2 P)
• 3 ft 2 in gauge railways in the United Kingdom (1 C)
• Metre gauge railways in the United Kingdom (1 C, 1 P)
• 3 ft 4 in gauge railways in the United Kingdom (1 C)
• 3 ft 6 in gauge railways in the United Kingdom (3 C, 2 P)
• 3 ft 9 in gauge railways in the United Kingdom (1 C)
• 4 ft gauge railways in the United Kingdom (3 C)
• 4 ft 1 in gauge railways in the United Kingdom (1 C)
• 4 ft 2 in gauge railways in the United Kingdom (2 C)
• 4 ft 3 in gauge railways in the United Kingdom (1 C)
• 4 ft 6 in gauge railways in the United Kingdom (2 C)
• 4 ft 6½ in gauge railways in the United Kingdom (1 C)
• 4 ft 7¾ in gauge railways in the United Kingdom (2 C)

U

• United Kingdom narrow gauge rolling stock (2 C, 10 P)

• British industrial narrow-gauge railways
• British narrow-gauge railways
• British quarrying and mining narrow-gauge railways
• Narrow gauge railways in the United Kingdom
• British military narrow-gauge railways
• List of British private narrow-gauge railways

0–9

• 2 ft and 600 mm gauge railways in the United Kingdom

B

• Britain's Great Little Railways