O14

O14 stands for:

• O14, ICD-10 code for gestational hypertension with significant proteinuria during pregnancy
• O14, a model railroad standard
• O14, a former trolleybus route in East Berlin, see Trolleybus Berlin (1951–1973)
• O 14, a Dutch O 12 class submarine built between 1928 and 1931

This is a disambiguation page for differentiating between several terms identified with the same word.