United have been reliant on Evans as they look to win promotion back to the npower Championship at the first attempt, the Welsh forward finding the net 21 times for the Blades, who sit in second place.
Charlton skipper Johnnie Jackson and Huddersfield frontman Jordan Rhodes are also shortlisted.
The winners will be announced at the Football League awards gala dinner in London on March 11.
Dave Artell highlighted Jordan Bowery's important role in Crewe's battle against relegation after the Railwaymen beat Forest Green 3-1.
John Sheridan celebrated his first victory as Fleetwood boss with a 2-0 win at Rochdale despite claiming it was his side's worst performance.