Robshaw has played a key role in Harlequins' charge this season, with his form not only earning him a place back in the England set-up but the captaincy under Stuart Lancaster, too.
Robshaw is joined among the shortlist by team-mate Mike Brown, while fellow RBS Six Nations squad member Brad Barritt earns his place after a stellar campaign.
Exeter flanker James Scaysbrook, Gloucester prop Nick Wood and Leicester back row Julian Salvi are also in the running for the prestigious award.
"The panel has come up with an incredibly impressive shortlist, which reflects the strength of Aviva Premiership Rugby," said Premiership Rugby chief executive Mark McCafferty.
"It's great to see players who have emerged from our Academies in what is undoubtedly a world-class list of players.
"It will be a tough job picking the winner as clearly all six would be a worthy Aviva Premiership Rugby Player of the Season."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
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The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.
