UC-61 may refer to:

• {{SMU|UC-61}}, a World War I German coastal minelaying submarine
• Fairchild 24, an airplane with a United States military designation of "UC-61"

• Boeing 747-400ER
• Boeing 747-400ERF
• Boeing 747-430
• Boeing 747-4B5
• Boeing 747-4J6/LCF
• Boeing 747-500X
• Boeing 747-600X
• Boeing 747-700X
• Boeing 747-8
• Boeing 747-800
• Boeing 747-8F
• Boeing 747-8I
• Boeing 747 Dreamlifter
• Boeing 747 G-BDXJ
• Boeing 747 LCF
• Boeing 747sp
• Boeing 747SP
• Boeing 747 SQ006
• Boeing 747-SR46
• Boeing 748
• Boeing 757-225
• Boeing 767-223
• Boeing 767-400ER
• Boeing 772
• Boeing+777