Martha Stewart (born Martha Helen Kostyra; August 3, 1941) is an American businesswoman, writer, convicted felon, television personality, and former fashion model.
As founder of Martha Stewart Living Omnimedia, she has gained success through a variety of business ventures, encompassing publishing, broadcasting, merchandising, and electronic commerce. She has written numerous bestselling books and is the publisher of the Martha Stewart Living magazine, while her syndicated talk show, Martha (2005–12), is broadcast internationally.
In 2004, Stewart was convicted of charges related to the ImClone insider trading affair, the severity of which saw her join Osama Bin Laden on the list of people banned from the UK and there was speculation that the incident would effectively end her media empire. She began a comeback campaign in 2005 and her company returned to profitability in 2006. Stewart rejoined the board of directors of Martha Stewart Living Omnimedia in 2011 and became chairman of her namesake company again in 2012.