The name Natacha is Russian and the meaning of Natacha is ‘birthday’ or ‘Christmas Day’ in Latin. It is a pet name and a variant of the Russian name Natasha, which is derived from the name Natalia, which means ‘Christmas Day’. It is from the Latin phrase ‘natale domini’, which means the same. This name was given to those who were born around the Christmas Day and hence the name is also associated with 'birthday'. Christmas is a festival celebrating the birth and birthday of Jesus Christ and it is celebrated all over the world by followers of Christianity.To celebrate, people exchange gifts with friends and family and they all eat a Christmas dinner together. Another popular tradition is decorating a Christmas tree with baubles, tinsel and lights. There are also many other variations to this name such as Natalya and Natalia.