Clare Wells was elected in at a special meeting on 4 August.
The former chair of the housing and property committee takes over from David Christian.
Ms Wells is the second woman to hold the post, the first was Lynda Ramsay who stepped down in 2006.
New leader for Douglas council
More from Isle of Man News
-
Free liver scans being offered at end of TT
Want to check the state of your liver after the overindulgence of TT?
-
All roads now closed as schedule changes again
Roads around the TT course are now closed.
-
Brad Pitt touches down at Ronaldsway
Hollywood superstar Brad Pitt has touched down on the Isle of Man!
-
Fourth time's the charm for today's TT rescheduling?
A fourth delay has been announced in today's TT schedule.
-
BSB star has truck seized by police
A rising BSB star has had his pickup truck seized.
-
Watch: TT race session this Sunday?
Clerk of the course Gary Thompson says the TT may run into Sunday because of weather.
-
Only one TT race today in latest update
TT organisers have rejigged today's schedule again - there'll now be no racing this evening.
-
Douglas mayor launches online fundraiser
Douglas mayor Steven Crellin has launched an online fundraiser to support this year's charity appeal.
