3K
Roppongi 3K
3K Battery
I-3K
Washington State Route 128
ARSAT-3K
Medgoen Singsurat
3kStatic
Robbie Kennealy
Australian Saloon Car Series
Old Natchez Trace segments listed on the National Register of Historic Places
3000 metres
Dobrynin VD-4K
Yodsanan Sor Nanthachai
Sukhoi Su-17
Python (programming language)
André 3000
Phosphoinositide 3-kinase
Mystery Science Theater 3000
Cosmic microwave background
Grumman F6F Hellcat
List of railway electrification systems