Metric gauge may refer to:

• Metre gauge, a rail gauge
• Any Gauge (instrument) or pressure gauge that reads in metric measurements
• A size of Gauge (disambiguation) expressed in metric units

• I. californica
• I Call First
• Icalma lake
• Icalma Lake
• ICAM5
• Icamaqua River
• Icamaquã River
• Icambosida
• ICAM (Color Appearance Model)
• ICAM (disambiguation)
• I Came 2 Party
• ICA Meat Cheat Scandal
• ICA meat repackaging controversy
• I Came to Dance (song)
• I Came to Hear the Music
• I Came to Play
• Icams
• ICan
• Ican
• I Canadian Corps
• IC analysis
• Icana River
• ICan Benefit
• ICan Benefit Group
• I Can Be (Taio Cruz song)