This is a list of surnames in which the usage is Russian; and the length is 7.
Lagunov Лагунов m RussianDerived from Russian
лагун (lagun) meaning
"water barrel". It was used to denote the descendants of a person who made water barrels.
Novikov Новиков m RussianDerived from Russian
новый (novy) meaning
"new", a name for a newcomer to a village.
Romanov Романов m RussianMeans
"son of Roman". This was the surname of the last dynasty of Russian tsars.
Smirnov Смирнов m RussianDerived from Russian
смирный (smirny) meaning "quiet, peaceful, timid". This is one of the most common surnames in Russia.