These are the awards and nominations received by Alt-J, an English indie rock band.

Awards and nominations {| class="wikitable sortable plainrowheaders" |- ! scope="col" | Award ! scope="col" | Year ! scope="col" | Category ! scope="col" | Nominee(s) ! scope="col" | Result ! scope="col" class="unsortable"| |- ! scope="row" rowspan=7|AIM Independent Music Awards | 2012 | Independent Breakthrough of the Year | rowspan=4|Themselves

| rowspan=2|2013 | Most Played New Independent Act | |rowspan=2| |- | Hardest Working Band or Artist

| rowspan=3|2015 | Best Live Act | |rowspan=2| |- | Independent Track of the Year | "Every Other Freckle"

| Independent Video of the Year | "Hunger of the Pine"

| 2017 | Independent Album of the Year | Relaxer

! scope="row" rowspan=3|Berlin Music Video Awards |rowspan=3|2018 | Best Cinematography | "3WW" | |rowspan=3| |- | Best Concept | "In Cold Blood"

| Best Direction | "Pleader"

! scope="row" rowspan=5|Brit Awards | rowspan=3|2013 | British Breakthrough Act | rowspan=2|Themselves | |rowspan=3| |- | British Group

| rowspan=2|British Album of the Year | An Awesome Wave

| rowspan=2|2015 | This Is All Yours | |rowspan=2| |- | British Group | Themselves

! scope="row" rowspan=4|Camerimage | rowspan=3|2017 | rowspan=2|Best Music Video | "3WW" | |rowspan=2| |- | rowspan=2|"In Cold Blood"

| Best Cinematography

| 2018 | Best Music Video | "Pleader"

! scope="row"|D&AD Awards | 2018 | Best Cinematography |"3WW" | style="background:#BF8040"| Wood Pencil

! scope="row" rowspan=3|European Festival Awards | 2012 | Newcomer of the Year | rowspan=2|Themselves

|rowspan=2|2015 | Headliner of the Year

| Festival Anthem of the Year | "Left Hand Free"

! scope="row" | Grammy Awards | 2015 | Best Alternative Music Album | This Is All Yours

! scope="row" rowspan=3|Ivor Novello Awards | rowspan=2|2013 | Album Award | An Awesome Wave | |rowspan=2| |- | rowspan=2|Best Contemporary Song | "Fitzpleasure"

| 2015 | "Every Other Freckle"

! scope="row" rowspan=2| MTV Video Music Awards | 2013 | Best Art Direction | "Tessellate"

| 2015 | Best Cinematography | "Left Hand Free"

!scope="row" | mtvU Woodie Awards | 2013 | Breaking Woodie | Themselves | | https://www.broadwayworld.com/bwwtv/article/fun-Among-Nominees-of-mtvUs-2013-WOODIE-AWARDS-20130212 |- ! scope="row" rowspan=2|Mercury Prize | 2012 | rowspan=2|Album of the Year | An Awesome Wave

| 2017 | Relaxer

! scope="row"|Music Producers Guild Awards | 2018 | UK Album of the Year | Relaxer

!scope="row"|Music Video Festival | 2013 | Best International Video | "Breezeblocks"

! scope="row" rowspan=5| NME Awards | rowspan=3|2013 | Best Album | An Awesome Wave | |rowspan=3| |- | Best New Band | rowspan=5|Themselves

| Worst Band

| 2015 | rowspan=2|Best British Band

| 2018

! scope="row"|Q Awards | 2012 | Best New Act

! scope="row" rowspan=6|Shark Music Video Awards | rowspan=6|2018 | Best Cinematography | rowspan=6|"Pleader" | |rowspan=6| |- | Best Color Grading

| Best Direction

| Best Post Production SFX

| Best Production Design

| Best Music Video

!scope="row"|UK Festival Awards | 2012 | Best Breakthrough Act | Themselves | | https://web.archive.org/web/20121003233455/http://www.surveymonkey.com/s/ukfa2012 |- ! scope="row" rowspan=20|UK Music Video Awards | rowspan=2|2012 | Best Alternative Video - UK | "Breezeblocks" | |rowspan=2| |- | Best Indie/Rock Video - UK | "Tessellate"

| rowspan=3|2014 | Best Visual Effects in a Video | rowspan=3|"Hunger of the Pine" | |rowspan=3| |- | Best Colour Grade in a Video

| rowspan=1|Best Alternative Video – UK

| rowspan=3|2016 | Best Artist | Themselves | |rowspan=3| |- | rowspan=5|Best Alternative Video – UK | "Pusher"

| "Every Other Freckle"

| rowspan=7|2017 | "Deadcrush" | |rowspan=2| |- | "In Cold Blood"

| rowspan=2|"3WW" | | rowspan=2| |- | Best Cinematography in a Video

| Best Artist | Themselves | | rowspan=3| |- | Best Choreography in a Video | rowspan=2|"Deadcrush"

| rowspan=2|Best Editing in a Video

| rowspan=3|2018 | rowspan=3|"Pleader" | |rowspan=3| |- | Best Colour Grading in a Video

| rowspan=2|Best Alternative Video - UK

| rowspan=2|2022 | "Hard Drive Gold" | | rowspan=2| |- | Best Choreography in a Video | "The Actor"

! scope="row"|Webby Awards | 2018 | Best Art Direction | "Pleader"

! scope="row"|YouTube Music Awards | 2015 | 50 Artists to Watch | Themselves | | Archived at Ghostarchive and the Wayback Machine:

References