I will talk with director or I will talk to director. Which is correct?

Both "I will talk with the director" and "I will talk to the director" are grammatically correct, and either can be used depending on personal preference or regional variations. 

In general, both "talk to" and "talk with" are commonly accepted in informal and formal communication. However, some people may have a preference for one over the other.

If you want to be more specific about the nature of the conversation, you might choose "talk with" to imply a more collaborative or interactive discussion. 

On the other hand, "talk to" is often used when referring to a one-sided conversation or giving instructions.

In everyday usage, the distinction between "talk to" and "talk with" is not always strictly maintained, and many people use them interchangeably. 

Choose the one that feels more natural to you in the context of your communication.