Marie Janella Barone is a fictional character from the American TV sitcom Everybody Loves Raymond. Played by actress Doris Roberts, she is the matriarch of the Barone family. She's obsessed with traditional motherly chores, such as cooking and having a clean house. She's very intrusive and over-nurturing mother of Raymond and Robert, and wife to Frank. Marie is an Italian-American housewife who excels in cooking, cleaning, and other things dealing with keeping a good home and bringing up a nurturing and caring family.

Except for Frank, everyone in the family has a hard time standing up to Marie because of her guilt-tripping, although Debra sometimes does take a stand much to the chagrin of her husband Raymond. In addition to being a profound worrier, one of Marie's trademark acts is to be outwardly helpful and sweet, but in the most passive-aggressive, insulting way, especially towards her daughter-in-law. Marie often barges into Debra's house and gives her cooking and cleaning tips, despite having never been asked. Whenever something smells strange, she'll immediately ask if Debra is cooking anything. Marie also criticizes Debra's housekeeping and often rewashes all of the clothes and vacuums the house even though Debra has already done it, which has been noted when Debra says "it's not my fault if someone breaks in and cleans" in a mid-series episode. Being overly sensitive, Marie at one point refused to speak to Debra for months, which resulted in several episodes interlocking with each other because of it.

Beyond this, Marie smothers Raymond and is generally neglectful to Robert, once mumbling "I dunno" when asked where Robert was while she fed baby Raymond. She does outrageous and often insane things to Ray and defends this by claiming she does it "out of love". Several of her actions have had a traumatizing effect on Ray's psyche, such as reading his childhood journal and complaining to Ray about Frank's behavior on a weekly basis when he was young. This has resulted in Raymond both simultaneously fearing his mother's smothering while seeking refuge in her in times of need. Although these actions are met with extreme outrage from Ray, these also hurt Robert who wonders why she didn't do any of them to him. She also tends to treat acts of rebellion from Raymond more personally than from Robert. On one occasion, she was hurt when she learned Raymond had held a party at their home when he was a teenager, and began to shower Robert with the love and attention previously held for Raymond. However, when Robert asks if she would have acted the same way if it had been his party, Marie takes this to mean that Raymond's party was actually Robert's, and she immediately reconciles with Raymond.

In addition to Marie's typically insulting way of being nice, she also has a history of making matters worse, usually by blowing small matters out of proportion. One of the worst mistakes she ever made was accidentally backing the car into Ray and Debra's home. Another was standing up to object at Robert's wedding, to ensure he was marrying Amy for love, and not because he felt pressured to do so.

Marie and Frank live at 319 Fowler in Lynbrook, Long Island, New York. There actually is a Fowler Avenue in the town, but the addresses do not go that high. The houses used for the exterior shots of the two Barone households are really across the street from each other but actually are located in North Merrick.

She has a thick New York accent. She often disrespects the privacy of her sons and their wives, but usually does so with good motives. She has problems accepting other people that don't meet her high standards, although she often makes a sincere effort to overcome her prejudices. She has a devious and scheming mind—some of her machinations include setting Amy up with one of Ray's friends to make Robert jealous and doing people favors in order to get bigger favors from them at a later point. She also always seems to be more affectionate to her younger son Raymond, rather than Robert.

She is very straight-forwards in most episodes, and she never holds back on commentary. She constantly criticizes Debra's cooking and house-cleaning, which creates a very comical effect. Also, her pious attitude is an icon of her personality. For example, in one episode, Marie tells Raymond the importance of not saying hurtful words. Robert agrees, which leads Marie to utter, "Nobody's listening, Robbie. You're such a busy body!"