This is Kitzia, and she appears to be quite upset. In fact, "angry cat" would be a better description than grumpy cat. But Kitzia isn't angry at all. That's just her face, and it always looks like that. Her owner, photographer Viktoriia Otdielnova, says Kitzia is a friendly and loving cat. But if she were to become angry, how would anyone know?
Read more about Kitzia at Bored Panda, and follow her life at Instagram.