Ida Nowakowska-Herndon (born December 7, 1990) is a Polish actress, dancer, singer, television personality and television presenter. Ranked 19th in the ranking of the 100 most valuable women's personal brands according to "Forbes Women Polska"; her market value in 2022 was estimated at over PLN 90 million.

She is the only artist in the history of the So You Think You Can Dance television show to dance, judge and host the TV series. She was a contestant on the first season of the Polish version of the show at the age of 16 years old (youngest contestant), then returned as a judge, was the host of the So You Think You Can Dance: The Next Generation, the Polish version of the TV series, then in the following season came back as the judge again.

She studied in New York City at the prestigious Professional Performing Arts School (alumni of the school include Alicia Keys, Britney Spears among others) and Steps on Broadway and performed at the Metropolitan Opera in La Bayadere and Les Troyens and in the lead role in a musical Reel to Real in Lincoln Center. She was already the host of 89+ TV Series on TVP1 when she was only 12 years old.

In 2007, when she was only 16 years old, she was the finalist (and the youngest contestant) of the first season of the Polish version of So You Think You Can Dance. She was the host of TV show Przymierzalnia on Canal+.

She graduated from the National Ballet School in Warsaw winning the title of the best graduate of ballet schools in Poland.

She was a soloist of the top musical theater in Poland - "Roma" Musical Theater in Warsaw, where she performed in the musicals: Peter Pan, Dance of the Vampires, Cats (Victoria - The White Cat) and The Phantom of the Opera (Meg Giry). She was an actress and dancer at Studio Buffo theater, where she took part in the musicals: Metro and Romeo and Juliet.

She received a triple platinum for the “Phantom of the Opera” album where she sang the part of Meg Giry.

She played the main role in the film Out of Reach.