Linda Louise, Lady McCartney (née Eastman; September 24, 1941 – April 17, 1998) was an American photographer, musician, cookbook author, and activist. She was the keyboardist and vocalist for the band Wings, in which her husband Paul McCartney of The Beatles also played.

Beginning in the mid-1960s, Linda began a career as a photographer, taking a job at Town & Country, where she soon received assignments to photograph various musicians and artists. By the late 1960s she had become a regular at the Fillmore East, a New York City concert venue where she became an unofficial staff photographer, capturing many performances at the legendary club, and was the first woman whose photograph appeared on the cover of the influential music magazine Rolling Stone. Her photographs were exhibited in galleries and museums such as the Victoria and Albert Museum, and were collected in several books.

Linda learned to play keyboards from her husband, and after the breakup of The Beatles in 1970, Paul and Linda recorded the album Ram together, and in 1971 formed the band Wings. She continued to play with Paul after the breakup of Wings in 1981 up until The New World Tour in 1993.

She was an animal rights activist. "Linda's Kitchen: Simple and Inspiring Recipes for Meatless Meals," the second of her two vegetarian cookbooks, was nominated for a James Beard Award in 1996. She also founded the vegetarian company Linda McCartney Foods together with her husband.