3U

3U or 3-U is the abbreviation or designation for:

• 3U (baseball) , in baseball, a rule and abbreviation for a special game variant ( unassisted putout of the 1st baseman )
• 3U Holding , German telecommunications group
• 3U Telecom , telephone company, subsidiary of 3U Holding
• Adler Standard 6 (3U) , a car model; see Adler Standard 6
• Sichuan Airlines , a Chinese airline based on the IATA code
• Škoda Superb I , a car model

See also:

• U 3

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