The Polski Owczarek Nizinny (translates to Polish Lowland Sheepdog) is referred to as the PON in both Poland and the United States.

This animated, happy, and alert dog has a good memory. It is obedient, intelligent and affectionate. Somewhat reserved and watchful with strangers, it will announce visitors loudly. The PONS should be accustomed to people at an early age. Dependable and fairly easy to train, once convinced something is the right way, the PONS will make the owner happy. It learns quickly and is very willing to please; however, it can be willful at times. This breed is responsive to firm, fair obedience training; but he is also clever, strong-willed, and likes to think for himself and make his own decisions. The PONS is a serious, responsible dog who could bite if provoked. This sheepdog may nip at people's heels, displaying herding behavior. The PONS is excellent with children when raised with them from puppyhood, and can be friendly with other dogs; but they will hold their own if another dog tries to knock them out from being the leader. The PONS will usually do okay with other non-canine pets. As a working dog for many centuries, the PONS is happiest when it is given a job to do. This breed is lively and clever enough to work sheep alone. This cute, shaggy dog does not grow into a calm, little lap-dog. The PONS is a curious, muscular, agile dog, that is liable to find trouble if left alone. This breeds needs an owner who is firm and consistent. Socialization and training are important. This breed is adaptable and makes a good traveling companion.

The Polish Lowland Sheepdog is a medium sized, cobby, strong and muscular dog with a thick long coat. Their working ability is attributed to an intense desire to please and compatible nature. They are very lively dogs, but self-controlled, clever and well known for their excellent memory.

They are double coated dogs, Their entire body is covered with a long, dense, shaggy thick coat that is reasonably straight. Their undercoat is soft and dense. Long hanging hair covers their eyes. The most common colors are white with either black, gray, or sandy patches and gray with white or chocolate, though all colors are acceptable. Most carry a dominate fading factor-puppies being born darker in coat color than they will have as adults. The exception to this is the puppies that are born white.

These are stable dogs and very self confident. They need a dominant owner and consistent training from a very young age. If training is not consistent, the dog will tend to dominate the owner. When they are not used as a herding or working dog, they can be an incredible companion-they seem to fit well into any lifestyle. They are very loyal dogs, but tend to be suspicious and aloof with those they don't know. Males should be 18-20 inches tall, females 17-19 inches.

Health concerns in the breed include hip dysplasia, progressive retinal atrophy, and thyroid problems.