Yes, Sith can have children.
The Sith are a fictional species in the Star Wars universe, and like most species in the galaxy, they are capable of reproduction.
While the Sith are known for their dark side powers and their pursuit of power, they are not fundamentally different from other species in terms of their biology. There are no canonical instances of Sith being unable to reproduce, and several examples exist of Sith having children:
- Darth Vader: Had a son, Luke Skywalker, and a daughter, Leia Organa.
- Darth Sidious: Had a grandson, Jacen Solo (who later became Darth Caedus).
- Darth Bane: Had an apprentice, Darth Zannah, who became his successor.
While the Sith may prioritize power and ambition, it's important to note that familial bonds and the desire for legacy have also played a role in their history.