Polycrystalline specimens of the niobium-vanadium alloy containing from 10 to 70 at.% Nb have been investigated by neutron diffraction. Maxima of the diffuse background are discovered which do not coincide with superlattice lines of the b.c.c. lattice. Absent for pure niobium, they are observed in Nb-V alloys for all the investigated vanadium concentrations. Their angular position can be described by wave vectors ( 1/2 , 1/2 , 1) and (3/2, 3/2, 1), and the corresponding regions of short-range order are close to 1 nm in size. The possible mechanisms which cause short-range order of displacements in the alloys are discussed.