Rachel Portman or Mary Berkeley Portman, (Haslemere, England, 11 December 1960) is a British composer who made history in 1996 for being the first woman composer who won an Academy Award for the Best Original Score for Emma. After that, she has been nominated again twice for the soundtracks of The Cider House Rules (1999) and Chocolat (2000). She was granted with the Order of the British Empire in 2010, and is an honorary member of the Worcester College, Oxford. She has composed over 100 film scores, and she has collaborated with the BBC in some projects, such as an opera based on The Little Prince and a choral symphony called The Water Diviner among others.
 Portman's career in music began with writing music for drama in BBC and Channel 4 films such as Oranges Are Not the Only Fruit, Mike Leigh's Four Days in July and Jim Henson's Storyteller series.
 Since then, Portman has written over 100 scores for film, television and theatre.
 Her success in her profession derives from "a natural affinity for the particularities of a film's narrative" and "her ability to forge a comprehensive articulation of a film's emotional thesis via her gift for colour and storytelling. Her acute career choices complement her compositional gifts, and she has carved out a unique niche as a composer of human-size stories, an increasing rarity in the box office-dominated film world of the 2000s and 2010s."
 Portman was born in Haslemere in Surrey, England, the daughter of Sheila Margaret Penelope (née Mowat) Portman and Berkeley Charles Berkeley Portman. She was educated at Charterhouse and became interested in music from a young age, beginning composing at the age of 14.
 After finishing school, Portman studied Music at Worcester College, Oxford, and composition with Roger Steptoe. It was here that her interest in composing music for films began, as she started experimenting with writing music for student films and theatre productions. She composed for Oxford Playhouse productions and made the soundtrack for a student film, Privileged, which was sold to the BBC. Her first professional score was commissioned by David Puttnam, and was the soundtrack for the 1982 film Experience Preferred... But Not Essential. Later, she started to compose music for BBC and Channel 4 shows and movies, such as Oranges Are Not The Only Fruit, Four Days in July by Mike Leigh and The Storyteller by Jim Henson.
 Since 1992 she has been in demand for Hollywood productions, and remains one of the few female composers to have achieved significant success at this level. With Emma (1996) she became the first female composer to receive an Academy Award. In an interview, talking about what influence does she think her success has had in inspiring women composers, Rachel Portman states: "I really haven’t ever thought of myself as a female composer, but rather as a composer. It never occurred to me I was one of the only women composers in film when I started out. There is still a huge imbalance in the industry when there are many, many greatly talented women composers of film music around now. I hope it becomes more and more the norm to see women credited as composers in film and TV in the future."
 Her film scores embrace a variety of styles, although she is best known for composing clear, string-dominated textures, often shaded with lyrical woodwind lines. She orchestrates much of her own music, but also works closely with orchestrator Jeff Atmajian. Although Portman gained renown as a composer for romantic comedies, her versatility is reflected in the many genres she has explored since the late 1990s, which range from serious drama to psychological thriller, such as The Cider House Rules, for which she also received an Academy Award nomination in 2000.
 She also was granted with the Order of the British Empire in 2010.
 Some of Portman's most highlighted collaborations are the ones with Lasse Hallstörm in The Cider House Rules (1999) and Chocolat (2000), for which she was nominated for the Academy Award for Best Original Score. Also, her scores for director Jonathan Demme's Beloved (1998) and Manchurian Candidate (2004) are especially striking; both scores depart from her more familiar orchestral sound. In particular, Beloved features solo voice, chorus, and African instruments instead of full orchestra.
 She also collaborated in several occasions with the BBC.
 In 2003 her opera The Little Prince premiered at the Houston Grand Opera and has since been performed throughout the United States and recorded under the auspices of the BBC. Based on Antoine de Saint-Exupéry's novel of the same name, Portman's The Little Prince is one of relatively few operas intended for both children and adults. Characterized by cleanly etched vocal lines for boy soprano and lively children's choruses, the opera represents the composer's most ambitious work. She also premiered The Water Diviner's Tale (2007), a choral symphony inspired in climate change for the BBC Proms, and later, Endangered (2012), an orchestral piece commissioned by the National Centre for the Performing Arts (China) in Beijing for a concert on the occasion of the World Environment Day in 2013.
 In 2019, Portman wrote Earth Song for the BBC Singers, with text by the poet Nick Drake and Greta Thunberg.  She also composed the soundtrack for the BBC1 Christmas special Mimi and the Mountain Dragon in 2019 and in 2020 she published her first album Ask the River as a pianist playing her compositions with Node Records.
 About the process of composing a film score, Portman describes: "I step in when all of the elements of the film are close to completion. I start to extract from those elements the world in which the music should live. It's very important for me to spend a long time just soaking myself in the film. Because the music has to fit the scenes, I watch each scene again and again, to look at the pace of the film, and to see how long each scene is. For me, composing is completely intuitive. The thing that gets me going is emotion".
 For Portman, melodies are the most important element in any music score. In her soundtracks, she structures her compositions around one main melodic idea: "Whenever I’m starting a film, if it’s gonna need a melody, I’ve got to crack that melody. And that becomes the thing on which to hang the whole score, from which you take everything else. All other branches come off it. So that was the first thing I wrote … To start and end with it, and to touch on it as you go through the film. It’s like the musical voice of the film, the main musical voice". Portman’s scores are based on one main motif, which is then extrapolated into subsidiary themes.
 Portman also states that "the purpose of a film score is to illuminate the story", and for this reason she uses very consciously the timbrical palette in her orchestrations: "‘Instruments have colour. For instance, I like using the clarinet because it can be happy and sad, although not as sad as an oboe, and not as romantic as a flute". Regarding the relation between the music and the scene, Portman explains: "I think brilliant composing can stand on its own. If you take the film away, buy the CD, and bring it home and listen to it, it has to work. Originality is important as well - something that's fresh, unexpected. When I watch and listen to a movie, i want to be surprised and dazzled".
 During her career, Rachel Portman has compoed over 1000 scores dor cinema, TV and theatre. Among them are the soundtracks of The Manchurian Candidate (Jonathan Demme), Oliver Twist (Roman Polanski), Hart's War (Gregory Hoblit), The Legend of Bagger Vance (Robert Redford), Beloved (Jonathan Demme), Benny and Joon (Jeremiah Chechik), Life Is Sweet (Mike Leigh), Never Let Me Go (Mark Romanek), Grey Gardens (Michael Sucsy), The Duchess (Saul Dibb), One Day (Lone Scherfig), The Vow (Michael Sucsy), Snow Flower and the Secret Fan (Wayne Wang), The Lake House (Alejandro Agresti), Infamous (Douglas McGrath), Mona Lisa Smile (Mike Newell), and The Human Stain (Robert Benton).
 Her other works include a children's opera, The Little Prince (which was later adapted for television) and Little House on the Prairie, a musical based upon the Laura Ingalls Wilder books Little House on the Prairie (2008). Portman was commissioned to write a piece of choral music for the BBC Proms series in August 2007 called The Water Diviner's Tale.
  
 Portman's first award was received as the result of scoring "a large body of work" for The Storyteller, for which she received the Anthony Asquith Award from the British Film Institute.
 Later, Portman became the first female composer to win an Academy Award in the category of Best Musical or Comedy Score (for Emma in 1996). Portman was also nominated for Academy Awards for her scores for The Cider House Rules in 1999 and Chocolat in 2000.
 On 19 May 2010, she was given the Richard Kirk Award at the BMI Film & TV Awards for her contributions to film and television music. Portman is the first woman to receive the honour.
 Portman was appointed Officer of the Order of the British Empire (OBE) in the 2010 New Year Honours.
 In 2015, Portman received the Primetime Emmy Award for Outstanding Music Composition for a Miniseries, Movie, or a Special for her work on Bessie. In 2022, she was honoured with the Career Achievement Award at the Zurich Film Festival.
 In 2023, Portman received the Primetime Emmy Award for Outstanding Music Composition for Julia (2021 film)