Editing Sean Astin (section)

== Awards and nominations ==
{| class= "wikitable sortable plainrowheaders"
|-
! scope="col" | Year
! scope="col" | Association
! scope="col" | Category
! scope="col" | Work
! scope="col" | Result
! scope="col" class="unsortable" | {{Tooltip|Ref.|Reference(s)}}
|-
| 1985
| [[Young Artist Award]]s
| [[7th Youth in Film Awards#Best Young Performer in a Motion Picture|Best Starring Performance by a Young Actor&nbsp;– Motion Picture]]
| ''The Goonies''
| {{won}}
| 
|-
| 1989
| [[Young Artist Award]]s
| [[11th Youth in Film Awards#Best Young Performer in a Motion Picture|Best Young Actor Starring in a Motion Picture]]
| ''Staying Together''
| {{won}}
| 
|-
| 1991
| [[Young Artist Award]]s
| [[13th Youth in Film Awards#Best Young Ensemble Performance|Outstanding Young Ensemble Cast in a Motion Picture]]
| ''Toy Soldiers''
| {{nom}}
| 
|-
| 1994
| [[Academy Awards]]
| [[Academy Award for Best Live Action Short Film|Best Live Action Short Film]]
| ''Kangaroo Court''
| {{nom}}
| 
|-
| 2001
| [[Screen Actors Guild]]
| [[Screen Actors Guild Award for Outstanding Performance by a Cast in a Motion Picture|Outstanding Performance by a Cast in a Motion Picture]]
| ''The Lord of the Rings: The Fellowship of the Ring''
| {{nom}}
| 
|-
| rowspan="3" | 2002
| [[MTV Movie Awards]]
| [[MTV Movie Award for Best On-Screen Team]] <small>(shared with [[Elijah Wood]] and ''Gollum''/[[Andy Serkis]])</small>
| ''The Lord of the Rings: The Two Towers''
| {{won}}
| 
|-
| [[Visual Effects Society]]
| [[Visual Effects Society Awards 2002|Best Performance by an Actor in an Effects Film]] <small>(shared with [[Elijah Wood]] and [[Andy Serkis]])</small>
| ''The Lord of the Rings: The Two Towers''
| {{won}}
| 
|-
| [[Screen Actors Guild]]
| [[9th Screen Actors Guild Awards#Outstanding Performance by a Cast|Outstanding Performance by a Cast in a Motion Picture]]
| ''The Lord of the Rings: The Two Towers''
| {{nom}}
| 
|-
| rowspan="6" | 2003
| [[Chicago Film Critics Association]]
| [[Chicago Film Critics Association Awards 2003|Best Supporting Actor]]
| ''The Lord of the Rings: The Return of the King''
| {{nom}}
| 
|-
| [[National Board of Review]]
| [[National Board of Review Award for Best Cast#2000s|Best Cast]]
| ''The Lord of the Rings: The Return of the King''
| {{won}}
| 
|-
| [[Saturn Awards]]
| [[Saturn Award for Best Supporting Actor|Best Supporting Actor]]
| ''The Lord of the Rings: The Return of the King''
| {{won}}
| 
|-
| [[Screen Actors Guild]]
| [[10th Screen Actors Guild Awards#Outstanding Performance by a Cast|Outstanding Performance by a Cast in a Motion Picture]]
| ''The Lord of the Rings: The Return of the King''
| {{won}}
| 
|-
| [[Visual Effects Society]]
| [[Visual Effects Society Awards 2003|Outstanding Male or Female Actor]]
| ''The Lord of the Rings: The Return of the King''
| {{won}}
| 
|-
| [[Washington D.C. Area Film Critics Association]]
| [[Washington D.C. Area Film Critics Association Awards 2003|Best Ensemble]]
| ''The Lord of the Rings: The Return of the King''
| {{nom}}
| 
|-
| 2014
| [[Utah Film Awards]]
| Best Actor
| ''The Freemason''
| {{won}}
| style="text-align:center;" | <ref>{{cite web |url=http://www.theutahfilmawards.com/2014-winners/ |title=2014 Winners |access-date=March 14, 2018 |website=Utah Film Awards |archive-url=https://web.archive.org/web/20180329100527/http://www.theutahfilmawards.com/2014-winners/ |archive-date=March 29, 2018 |url-status=live}}</ref>
|-
| 2017
| [[Screen Actors Guild]]
| [[Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series|Outstanding Performance by an Ensemble in a Drama Series]]
| ''Stranger Things''
| {{nom}}
| 
|-
|}