Yes, in "Star Wars: A New Hope," Obi-Wan Kenobi provides Luke Skywalker with some important information about his father, Anakin Skywalker, though it is presented in a somewhat misleading manner.
When Luke first meets Obi-Wan, he learns that his father was a Jedi Knight who fought in the Clone Wars. Obi-Wan describes Anakin as a "good friend" and a "brave Jedi." However, Obi-Wan also tells Luke that Anakin was killed by Darth Vader, which at that point in the story is not entirely accurate. Obi-Wan refers to Anakin's fall to the dark side and transformation into Darth Vader, but he does not disclose the full truth about Anakin's identity or fate.
This portrayal set the stage for the dramatic revelations that come later in the original trilogy and the prequel trilogy. Obi-Wan's statements to Luke serve to provide a heroic image of Anakin while omitting the more complex and tragic details of his life and transformation into Darth Vader.