Kala Suri Visharadha Dr. Mudunkotuwa Munasinghe Arachchige Sujatha Perera  (born 12 May 1942: as සුජාතා අත්තනායක), colloquially known as Sujatha Aththanayaka , is a Sri Lankan singer. She is a prominent playback singer in Sinhala cinema and also in Sri Lankan and Indian Tamil cinema. Considered the golden bell of Sinhala music, she holds the record for the most number of cassettes produced by a Sri Lankan woman singer with more than 115 cassettes in a career spanning more than seven decades. She is the first female music director in Sri Lanka. She contributed for nearly 400 Sinhala films and 20 Sri Lankan-Indian Tamil Films as a playback singer. She sang more than 6000 Sinhala songs and more than 1000 songs in 9 different languages. 
 She was born on 12 May 1942 in Kelaniya as the third of five siblings. Her father Mudunkotuwa Munasinghe Arachchige Dharmadasa Perera was a police sergeant. Her mother Gertrude Margaret Wolboff aka Vimala Kantha was a tower hall actress and singer. She started education in 1947 from Wedamulla Maha Vidyalaya, Kelaniya. She has two sisters and two brothers. Her sister Ranjani Perera is a renowned dance teacher and her younger brother Susil Perera is a popular comedian and musician.
 She is married to Navaratne Aththanayaka. She met Navaratne at the State College of Music. The couple has three sons - Hely Sajeewa, Chanaka, Samin. Her second son Captain Chanaka Sanjeewa died on September 25, 1992, in Pooneryn during Eelam War II. Since his death, Aththanayaka quit singing and start to wear white sarees.
 After his son's death, she left Sri Lanka for America in 1992. Due to the huge fan demand, she performed a series of successful concerts titled Jeevana Vila Meda in 2012.
 In 1950, she sang Malse Dileva for a feature program in SLBC. After school life at the age of 18, she studied at the State College of Aesthetic and then at State College of Music in 1960.  At first she was a lecturer at the Kalutara Teachers Training College and then became a Director of Education (Music) at Ministry of Education, Sri Lanka. In 1967 she went to India to complete a master's degree and "Visharadha" Exams from Lucknow College of Music in singing and playing sitar. After returning, she started to work at Radio Ceylon becoming the only female singer to perform classical music programs on Sri Lanka Radio. He retired as the Director of Aesthetic Education. In 1958 she became the first Sinhalese singer who sang a Hindi song for the program “Bal Sakha”.
 In 1975, she became the first Sri Lankan female music director and directed music for films such as Hariyata Hari and Sanda Kinduru. Apart from music direction, Aththanayake involved as a playback singer and radio drama singer for many years started with 1956 film Sohoyuro at the age of 14. She sang several popular playback film songs such as Jeewana Vila Meda, Maligawe Ma Rajini, Onchilla Thotili, Guwan Thotille, Herde Rasa Malige, Parawunu Mal Wala and Puthune Me Ahaganna. She recorded four playback songs for four films in one day, which is a record in Sri Lanka. The first song was recorded at Kandana S. P. M. studio. The second song was done in the afternoon at Hendala Vijaya Studios. The third song was recorded at the University of Kelaniya studio and the fourth song was recorded at Lanka Studios.
She sang playback songs for nearly 400 Sinhala Films.
In 1979, a special music test conducted by the Sri Lanka Broadcasting Corporation won the first place in the rankings, beating all other singers.
 She is the only singer to perform in India where she sang in different languages such as Hindi, Tamil, Urdu, Telugu, Malayalam, Marathi, English and Nepali. In 1980, she had the opportunity to sing the song Subha Kamina at the President's House when Nepal King Birendra and Queen Vimla arrived Sri Lanka. She was the first Sinhala singer to perform a Nepali song in the Asian Hindi Service. She also performed a Tamil one-man concert Swaram in Bambalapitiya as well as an Islam concert Ilampirai Geethangal in Maradana. She sang Tamil songs for 20 Tamil Films. She sang playback songs for Indian actresses like Radhika Sarathkumar, Thanuja Mukherjee & Vaijayanthimala.
 Her husband was the musician in some of her popular songs including Aganthuka Kurulla, Bolan Podi Nangi Tikak Hitapan, Jeewathwana Thuru Ma, Neth Wasa and Wessata Themi Themi. Apart from singing, she is a talented Katak dancer who studied under Sirimathi Rasadari. In 1985, she represented Sri Lankan cultural delegation at the SAARC Summit. In 1992, after the death of her son, she launched a cassette "Yuda Bima Kandulak" to commemorate her son's first death anniversary.
 She sang more than 6000 Sinhala songs and 1000 Tamil songs. She was also involved with many popular duets including; Obe Namin, Banda Jaya Keheli with Amaradeva Sandun Sihil, Adara Pujasane with Victor Rathnayake, Koho Koho Kohe Idan with Sanath Nandasiri, Bonda Meedum Kandurelle with Abeywardena Balasuriya, Chandrame Ra Paya Awa, Ghana Andakarayen Midi with H.R. Jothipala, Piruna Hada Santhane, Gangawe Neela Jale with Harun Lanthra, Madhura Yame with R. Muttusamy, Pera Athmayaka with Milton Perera and Pushpa Makarandaya with Narada Disasekara.
 In 2016, she directed the music for the Sri Lanka Police theme song and later she composed the theme song of the Sri Lanka Special Task Force (STF).
 In 1974 she started her first solo concert "Asi Mihira"
 In 1965, she was awarded the Swarna Sanka Award for Best Singer of the Year for the song Duka Eka Eka Peralila in the film Yata Giya Dawasa. In 1966, she won the award for the song Paravunu Mal Wala in the film Parasathumal at Sarasaviya Film Festival. She was awarded with “Pan Mai Kokilam” by Sri Lanka Muslim Artiste Front. In 2021, she was honored with a lifetime achievement award during the ceremony held for 21 artists who made an invaluable contribution to Sinhala cinema in the early decades of Sinhala Cinema.
 2009 - Vidhyalankara Honorary Award
 2011 - Dheemathi Award
 2015- Susara Pranama Award
 2017 - ADTF Honorary Award
 2017 - Prathibha Pranama Award
 2017 - OSCAR Pooja Pranama Award
 2018 - Kalabhushana Award
 2019 - Honorary Doctorate - University of the Visual and Performing Arts
 2020 - Kalabhimani Award
 2020 - Jeevana Prashansa Honorary Award
 In 2017, Amila Lokumannage wrote her biopic Sujatha Deshaye Madurathama Swaraya" .
 Attanayake's Book Launch ceremony entitled "Sujatha Attanayake Abhinandana" was held on November 11, 2017, at the Sri Lanka Foundation Institute where she launched her biography, "Sujatha Deshaye Madhurathama Swaraya" and a Catalogue of her songs titled "Sujatha Attanayake Geethawaliya", written by Amila Lokumannage.
 In 2019, Aththanayake was honored as a heroic mother who was gifted a heroic son who sacrificed his life for the country. In the same year, she was awarded honorary doctorate from University of the Visual and Performing Arts.