Yes. Chihuahua puppies can bark and many will do so willingly and often. Chihuahua puppies are first able to bark at around 3 weeks of age.
Many representatives of the breed are even said to bark excessively and are real barkers. This is more due to poor upbringing and socialization.
Many owners of particularly small dogs often don’t take it that seriously when it comes to training. After all, the four-legged friend is so cute and still reasonably easy to handle even when untrained. Unfortunately, this is a misjudgment and can have a major impact on the quality of living with a dog.
So that your Chihuahua doesn’t bark all the time, you should educate and keep him busy. Because sufficiently busy and therefore satisfied four-legged friends are usually calm and bark very little.