Rebecca Sara "Becki" Newton is an American actress. She is currently a regular cast member of Ugly Betty.

Born in New Haven, Connecticut, Becki was raised in Guilford, Connecticut. She began performing musicals and plays at local theaters, and studied at the University of Pennsylvania, where she graduated with a BA in European History. She then moved to New York City and landed several roles in television commercials, such as one done for Olive Garden.

She currently plays the role of Amanda Tanen in the comedy-drama series, Ugly Betty, and, with co-star and personal friend Michael Urie, is co-host of the Official Ugly Betty Podcast. In the episode "Sofia's Choice," Newton did a dual role as Ruthie, a frumpy assistant at another magazine. Also from Season 2 onward, she took over the role of Fey Sommers so that Fey shares more of a resemblance to Amanda.

Newton met her future husband, Chris Diamantopoulos, in a subway station in New York, when he asked for directions. She later found out that he lived less than a block from the station in which they met, meaning he had simply used asking for directions as an excuse to talk to her. He invited her to one of his shows (The Full Monty) on Broadway.

Her older brother Matt Newton is an established actor who has appeared in several independent films, including Dahmer. Her mother Jennifer is an award-winning artist, and her aunt Stephanie Chase is a renowned classical violinist.