The B5401 was a link road in north Leicestershire. The road was originally unclassified but gained its number in the mid-1930s.
Starting on the then-A453 at Castle Donington the road headed southeast along Diseworth Road to pass RAF Castle Donington then cross the B5400. A few bends took the road through Diseworth itself, after which the road continued through Long Whatton to end on the B5324 to the west of Hathern.
When RAF Castle Donington was upgraded in the 1960s to become East Midlands Airport the section of the road north of the B5400 was severed; the stub remaining to the north is unclassified. The remainder of the road lasted until at least the 1990s but is now also unclassified.