The Oscar-nominated Georgy Girl star died at her home in New York last week following a seven-year battle with breast cancer.
Mourners paid their respects to the actress during a private ceremony on Saturday at the First Congregational Church of Kent in Connecticut.
Redgrave was later laid to rest in a wicker coffin covered in spring flowers at St. Peter's Cemetery in Lithgow, New York - the same place her mother Rachel Kempson Redgrave was buried in 2003, as well as her niece Natasha Richardson following her death in a ski accident last year.
Richardson's husband Neeson joined Lynn Redgrave's mother, Vanessa, and her niece, Joely Richardson, at the ceremonies.
Also at the service was Redgrave's Gods And Monsters co-star Brendan Fraser, who said of the actress, "Lynn had a real quiet bliss about her, and enthusiasm. I think if I ever saw her sad, it was in a performance."