Patronymics
Russians usually have a first, or given name, a patronymic, and a last or family name. The patronymic is derived from the fathers given name with an ending, usually of "-ovich" to indicate "son of", or "-ovna" to indicate "daughter of."
The son of Alexander (Александр) would have the patronymic of Aleksandrovich (Александрович). Alexander's daughter would have the patronymic Aleksandrovna (Александровна).
Common boys names with patronymics: Александр - Богдан, Борис - Владимир, Владислав - Денис, Дмитрий - Иосиф, Кирилл - Михаил, Никита - Семён, Сергей - Филипп, Эдуард - Эдуард
Common girls names: Александра - Валентина, Валерия - Диана, Дина - Зоя, Инга - Лариса, Лидия - Надежда, Наталья - Раиса, Регина - Юлия, Яна - Ярослава