R 44
R 44 or R44 stands for:
- Clearance boat R 44 of the Aldebaran class, see German mine clearance boats
- ECE regulation R 44 on restraint systems for children, see child seat # ECE-R 44
- R 44 , radial tires on a 44-inch rim, see agricultural tires
- Hazardous substance information R 44 , see R and S phrases
- Robinson R44 , American helicopter