The auction will include various items that were turned in to police officers and remained unclaimed.
Members of the public can place a bid in the envelope next to the item they wish to purchase.
Officials will call winning bidders later in the day.
The hours for bidding will be 9-11 a.m. at the Wilton Police Department, 240 Danbury Road.
Click here to follow Daily Voice Wilton and receive free news updates.