The 29-year-old, who has made over 300 career appearances, joined the club this summer after leaving Morecambe.
First team manager Neil Cox explained the reasons behind the decision to iFollow Iron.
He said: “He's always been a leader, and he's come into this football club and led by example. He's trained, organised and spoken to everyone really well. I think he's at the right stage of his career for this, and he'll be a good captain for this football club.
"I've been really impressed by what he's brought off the field, but he's also a leader on the pitch who knows when to scream and shout, when it's the right time to talk to people, and also when to pull people aside and help them out.
"He's a leader and that's what we want. While he's captain, everyone else has to lead by example as well, and he starts it off for me."
Davis has skippered the side during a number of the pre-season matches, and the former Crewe youth graduate said: "I'm delighted and really pleased to be named captain. It's a big commitment and I thank the gaffer for giving it to me and trusting me with it.
"I'm looking forward to the role. I have previous experience of it with Crewe, having done it for a few years there, and have stepped in at previous clubs after that as well.
"It's something I really enjoy. I feel it'll get the best out of me, and my job's to get the best out of everyone else as well.
"I will give my all for the football club and try to help us improve on and off the pitch."
See much more from both Neil Cox and Harry Davis on iFollow Iron.
