Congratulations on new baby in russian

Here are a few ways to congratulate someone on a new baby in Russian:

1. "Поздравляю с рождением ребенка!" (Pozdravlyayu s rozhdeniem rebenka!) - Congratulations on the birth of a child!
2. "У вас новый член семьи!" (U vas novyj chlen sem'i!) - You have a new family member!
3. "С радостью приветствую новорожденного!" (S radost'yu privyetstvuyu novorozhdennoho!) - I warmly welcome the newborn!
4. "Поздравляю с пришедшим малышом!" (Pozdravlyayu s prishedshim mal'chikom!) - Congratulations on the arrival of the little one!
5. "Желаю вам счастья и здоровья новорожденному!" (Zheleyu vam schast'ya i zdorov'ya novorozhdennomu!) - I wish you happiness and health to the newborn!

Note: In Russian culture, it's common to use the formal form of address (e.g. "вы" instead of "ты") when congratulating someone on a new baby, especially if you're not close to the family.