Ylda Novik, 54, an internationally known pianist, piano teacher, music critic and editor, died of cancer Thursday at George Washington University Hospital.

In addition to teaching at her home in Chevy Chase, she had been ajunct professor at Montgomery College since 1968, and on the faculty of George Washington University since 1970.

Over the years, Mrs. Novik had conducted workshops and master classes at 50 colleges and universities in 38 states in this country and in Greece, Vagoslavia, Israel, Guatemala and Japan.

She also had been convention artist for the Music Teachers National Association state conventions in 20 states. She was a member of the association.

Born in Hungary, Mrs. Novik came to this country as a child. She graduated in 1943 from the Cleveland Institute of Music, where she had been a pupil of Arthur Loesser and Beryl Rubinstein.

Shen then took a year of graduate studies at the Juilliard School of Music, working with Muriel Kerr.

From 1968 to 1973, Mrs Novik was piano editor of the American Music Teacher. During 1967-73, she was a contributing music critic of The Washington Star.

She had served as U.S. correspondent to the Inter-American Music Bulletin during 1970-74 and was a contributing editor to Piano Quarterly magazine.

In 1972, Mrs. Novik became the first foreign artist invited a record on the Japanese Toshiba label. She recorded Bela Bartok's "Mikrokosmos" and "For Children."

The author of articles for numerous publications, Mrs. Novik recently had completed a series of eight editions of piano music, which included recordings she made. They were entitled "Young Pianists' Guide". She also edited a new edition of Tchaikovsky's Album for the Young."

She was on the advisory council of the Washington Chamber Orchestra and on the board of directors of the Washington Choral Foundation and the D.C. Community Orchestra. She also held positions in a number of other state and national music organizations.

Recently, Mrs. Novik had been honored by the Washington Music Teachers Association. Last fall, 23 of her students planned and performed a one-hour, tribut to her, which was broadcast over radio station WGMS. The program was repeated on the station last night.

She is survived by her husband, David of the home; a son, Lewis Gregory of Baltimnore, and a daughter, Jill Susan Gridland, of New York City.

A memorial service will be held at the Ethical Society in Washington at 3 p.m. Sunday.

The family suggests that expressions of sympathy be in the form of contributions to the Washington Music Teachers Association.