Stephanie Anne Pearl-McPhee, also known as the Yarn Harlot (born June 14, 1968) is a writer, knitter, International Board Certified Lactation Consultant (IBCLC), and doula living in Toronto, Ontario, Canada.

Pearl-McPhee's grandmother, a professional knitter, taught her to knit when she was four years old.

Pearl-McPhee has said that she started writing about knitting when she lost her hospital job "support[ing] birth and breast-feeding" because of the 2002–2004 SARS outbreak among healthcare workers.

[11] Now cited in the Urban Dictionary and in The New York Times' 2007 Word in Review,[12] it is defined as "kinnear v. To take a candid photograph surreptitiously, especially by holding the camera low and out of the line of sight."

[13] He showed his attempts on Late Night with Conan O'Brien, where, in the same interview, he declared that Pearl-McPhee is "the Michael Jordan of knitting."