Editing San Francisco 49ers (section)

===Divisional===
====Los Angeles Rams====
{{Main|49ers–Rams rivalry}}

The rivalry between the [[Los Angeles Rams]] and the San Francisco 49ers is considered by many to be one of the greatest NFL rivalries ever, placing No. 8 on ''Sports Illustrated'''s "Top 10 NFL Rivalries of All Time" list, compiled in 2008.<ref>{{cite magazine|url=http://sportsillustrated.cnn.com/multimedia/photo_gallery/2005/12/15/gallery.oldrivals/content.3.html|title=Top 10 NFL Rivalries of All Time|access-date=January 30, 2008|magazine=[[Sports Illustrated]]|archive-url=https://web.archive.org/web/20090129203450/http://sportsillustrated.cnn.com/multimedia/photo_gallery/2005/12/15/gallery.oldrivals/content.3.html|archive-date=January 29, 2009|url-status=dead}}</ref> After the Rams moved to St. Louis, [[Roger Craig (American football)|Roger Craig]] stated in ''Tales from the San Francisco 49ers Sideline'' that the Rams would always remain the team's arch-rival, regardless of location.<ref>Craig (2004) 37</ref> The Rams are the only team to have played the 49ers twice every season for the last 58 seasons<ref name="Knapp 1">{{cite news|url=http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2009/10/03/SPA51A0S03.DTL|title=49ers must beat Rams|work=San Francisco Chronicle|access-date=October 4, 2009|first=Gwen|last=Knapp|date=October 4, 2009|archive-url=https://web.archive.org/web/20091007011528/http://www.sfgate.com/cgi-bin/article.cgi?f=%2Fc%2Fa%2F2009%2F10%2F03%2FSPA51A0S03.DTL|archive-date=October 7, 2009|url-status=live}}</ref> to combine for more than 100 regular season games; the all-time regular season lead is held by the 49ers 72–67–3.<ref>{{Cite web |title=All Matchups, San Francisco 49ers vs. Cleveland/St. Louis/LA Rams |url=https://www.pro-football-reference.com/boxscores/game_query.cgi?tm1=sfo&tm2=ram&yr=all |access-date=2024-08-05 |website=Pro-Football-Reference.com |language=en}}</ref> The rivalry regained geographic animosity following their return to Los Angeles in 2016. The rivalry has also regrown a fierce element of animosity between fans,<ref>{{cite web|url= https://bettingsports.com/news/theory-the-49ers-are-terrible-because-their-fans-are-the-worst-people-on-earth|title= 49ers fans are terrible because their fans are the worst people on earth|access-date= November 18, 2023|archive-date= May 9, 2023|archive-url= https://web.archive.org/web/20230509182207/https://bettingsports.com/news/theory-the-49ers-are-terrible-because-their-fans-are-the-worst-people-on-earth|url-status= dead}}</ref><ref name="a401">{{cite web | last=Taibi | first=Milo | title=Look: Football Fans Feel Awful For The San Francisco 49ers | website=Athlon Sports | date=2023-01-29 | url=https://athlonsports.com/nfl/look-football-fans-feel-awful-for-the-san-francisco-49ers | access-date=2024-08-30}}</ref> coaches,<ref>{{cite web|url=https://www.youtube.com/watch?v=F7LX1MuQdqQ|title=Robert Saleh is the Hype Man We All Need : 49ers|website=[[YouTube]] |date=October 14, 2019 }}</ref> and players alike.<ref name="n666">{{cite web | last=Jackson | first=Cliff | title=Random Ramsdom: Aaron Donald seemed to be enjoying the 49ers loss | website=Turf Show Times | date=2023-01-31 | url=https://www.turfshowtimes.com/2023/1/31/23578653/rams-news-aaron-donald-seemed-enjoying-49ers-loss-playoffs | access-date=2024-08-30}}</ref><ref name="g513">{{cite web | last=Taranto | first=Steven | title=Kelly Stafford, Rams QB Matthew Stafford's wife, apologizes for throwing pretzel at 49ers fan | website=CBSSports.com | date=2019-05-08 | url=https://www.cbssports.com/nfl/news/kelly-stafford-rams-qb-matthew-staffords-wife-apologizes-for-throwing-pretzel-at-49ers-fan/ | access-date=2024-08-30}}</ref><ref name="z472">{{cite web | last=Polacek | first=Scott | title=Aaron Donald Ejected for Making Contact with Official in Week 1 vs. 49ers | website=Bleacher Report | date=2016-09-13 | url=https://bleacherreport.com/articles/2663319-aaron-donald-ejected-for-making-contact-with-official-in-week-1-vs-49ers | access-date=2024-07-30}}</ref><ref name="q466">{{cite web | last=Wagner-McGough | first=Sean | title=LOOK: Aaron Donald's ejection is the most exciting play from Rams-49ers | website=CBSSports.com | date=2016-09-13 | url=https://www.cbssports.com/nfl/news/look-aaron-donalds-ejection-is-the-most-exciting-play-from-rams-49ers/ | access-date=2024-08-30}}</ref> The two teams have met twice in the postseason; in the [[NFC Championship Game]]. The first meeting came on January 14, 1990, when the 49ers crushed the Rams 30–3 at [[Candlestick Park]] to advance to the team's historic victory in [[Super Bowl XXIV]].<ref name="pfrninersplayoffs"/> Both teams later met again on January 30, 2022, when the Rams rallied from a 10-point deficit in the fourth quarter to beat the 49ers 20–17 at [[SoFi Stadium]], ending a 6-game loss-streak to the 49ers and ultimately proceeding to win [[Super Bowl LVI]].<ref>{{cite web |title=San Francisco 49ers at Los Angeles Rams – 2021 NFC Championship Game |url=https://www.nfl.com/games/49ers-at-rams-2021-post-3 |website=NFL.com |access-date=February 2, 2022 |date=January 30, 2022 |archive-date=February 10, 2022 |archive-url=https://web.archive.org/web/20220210030946/https://www.nfl.com/games/49ers-at-rams-2021-post-3 |url-status=live }}</ref> As of 2024, the 49ers lead the all-time series 78-71-3.

====Seattle Seahawks====
{{Main|49ers–Seahawks rivalry}}
During the 2010s, the [[Seattle Seahawks]] quickly grew an intense rivalry with 49ers. The two teams began an exchange of heated regular season matchups following the NFL's realignment in 2002 that relocated both teams into the same division. Prior to 2002, the teams played each other almost every season during the pre-season, but only every three years during the regular season as part of the league scheduling algorithm. The rivalry began to intensify after the 49ers hired [[Jim Harbaugh]] out of [[Stanford University|Stanford]] in 2011, as he and Seahawks and former [[University of Southern California|USC]] head coach [[Pete Carroll]] had been involved in a lengthy feud. The matchups regularly grew in intensity through the 2010s, culminating in the two teams meeting in the 2013 NFC Championship which saw Seattle advance and ultimately on to win [[Super Bowl XLVIII]].<ref name="s703">{{cite web | title=Richard Sherman reflects on 10th anniversary of iconic 'Crabtree' postgame interview | work=FOX Sports | date=2024-01-25 | url=https://www.foxsports.com/stories/nfl/richard-sherman-reflects-on-10th-anniversary-of-iconic-crabtree-postgame-interview | access-date=2024-08-30}}</ref> As of the 2023 season, the Seahawks lead the all-time series 31–23.<ref>{{Cite web |title=All Matchups, San Francisco 49ers vs. Seattle Seahawks |url=https://www.pro-football-reference.com/boxscores/game_query.cgi?tm1=sfo&tm2=sea&yr=all |access-date=2024-08-05 |website=Pro-Football-Reference.com |language=en}}</ref>

====Arizona Cardinals====
{{Main|49ers–Cardinals rivalry}}
Though the 49ers and [[Arizona Cardinals|Cardinals]] initially met in 1951 and would meet occasionally until 2000, this would not develop into a full-fledged rivalry until both teams were placed in the NFC West division in 2002. Longtime-Quarterback Steve Young suffered a career-ending concussion in a game against the Cardinals on September 27, 1999, after taking a brutal hit from Arizona cornerback [[Aeneas Williams]].<ref>{{cite web|url=http://findarticles.com/p/articles/mi_qn4191/is_20000429/ai_n9970931/ | title=FindArticles.com – CBSi|website=findarticles.com}}</ref><ref>{{cite web | url=http://www.cbssports.com/nfl/story/12968406/use-your-head-brian-be-smart-and-walk-away-now?tag=globalNavNFL;headlines | title=Use Your Head, Brian: Be Smart and Walk Away Now | first=Clark | last=Judge | date=February 23, 2010 | work=CBS Sports}}</ref> While still a close rivalry in wins; it is often lopsided on both ends. After the 49ers won nine of ten meetings between 2009 and 2013, the Cardinals won eight straight meetings between 2014 and 2018. San Francisco currently leads the series 36–31.<ref>{{cite web |title=San Francisco 49ers Head To Head Records |url=https://www.pro-football-reference.com/teams/sfo/head-to-head.htm |website=Pro Football Reference |publisher=Sports Reference |access-date=November 24, 2023}}</ref>

The two teams have yet to meet in the playoffs.