L13 or L-13 may refer to:
Vehicles LET L-13 Blaník, a trainer glider , a Leninets-class submarine Stinson L-13, an American utility aircraft Zeppelin LZ 45, a German airship
Proteins 60S ribosomal protein L13 Mitochondrial ribosomal protein L13 Ribosomal protein L13 leader, a family of human genes
Other uses Barcelona Metro line 13 Kwese language Nissan L13 engine