The first incident happened on Scott Street, Stirling, at around 2pm on March, 27, when a four-year-old female Shih Tzu-Chihuahua cross was stolen and driven off by a man in an old-style Land Rover Discovery.
The dog is described as black with tan and brown markings, she was wearing a pink collar with a pink bow at the front.
She has long whiskers and protruding teeth, and is currently pregnant.
The second incident occurred between 2pm and 3.30pm in Dunblane.
A five-month-old Husky puppy was stolen whilst unaccompanied and tied up outside a caravan at the Balhadie Filling station after the owners were approached by a man driving an old style Land Rover Discovery.
This dog is small and white with brown patches on its back, it has blue/grey eyes.
The man involved in both incidents is described as white, in his late 30’s, heavily built and around 5ft 10in in height.
He has long shaggy hair that is mousy brown in colour, and a shaggy beard.
He was wearing a yellow high-vis waistcoat and jeans.
Police have also reported that he may have been accompanied by a young boy, roughly ten or 11-years-old.
The vehicle is described as a dark blue Land Rover Discovery 4x4 vehicle, bearing a 3D registration plate to the rear.
Anyone with information is asked to call Police Scotland on 101, quoting incident numbers 1954 and 1796 of March, 27, 2021.
Alternatively, you can call Crimestoppers anonymously on 0800 555 111.