1981 Primera División de Chile

{{Infobox football league season

|competition=Campeonato Nacional 1981

|dates=11 July 1981 – 24 January 1982

|winners=Colo-Colo (13th title)

|relegated=Ñublense
Everton
Deportes Concepción
San Luis

|matches=240

|total goals=661

|continentalcup1=1982 Copa Libertadores

|continentalcup1 qualifiers=Colo-Colo
Cobreloa (Liguilla winners)

|league topscorer=Carlos Caszely
Luis Marcoleta
Víctor Cabrera
(20 goals)

|biggest home win= {{nowrap|Naval 8–1 Ñublense
(2 January 1982)}}

|biggest away win=

|highest attendance= 74,570 {{nowrap|Universidad de Chile 0–2 Colo-Colo
(13 December)}}

|lowest attendance=

|attendance=1,991,278

|average attendance=8,567

|prevseason=1980

|nextseason=1982

}}

The 1981 Campeonato Nacional was Chilean league top tier's 49th season. Colo-Colo was the tournament's champion, winning its thirteenth title.{{cite web |url = http://www.colocolo.cl/historicos/1981/ | title = 1981: Bajando a Cobreloa | publisher = Colo-Colo Official Web Site | access-date = 1 September 2018}}

League table

{{#invoke:sports table|main|style=WDL

|res_col_header=QR

|winpoints=2

|team1=COL|name_COL=Colo-Colo

|team2=CLO|name_CLO=Cobreloa

|team3=UCH|name_UCH=Universidad de Chile

|team4=UES|name_UES=Unión Española

|team5=NAV|name_NAV=Naval

|team6=MAG|name_MAG=Magallanes

|team7=AUD|name_AUD=Audax Italiano

|team8=UCA|name_UCA=Universidad Católica

|team9=DLS|name_DLS=Deportes La Serena

|team10=OHI|name_OHI=O'Higgins

|team11=PAL|name_PAL=Palestino

|team12=DIQ|name_DIQ=Deportes Iquique

|team13=SLU|name_SLU=San Luis

|team14=DCO|name_DCO=Deportes Concepción

|team15=EVE|name_EVE=Everton

|team16=ÑUB|name_ÑUB=Ñublense

|adjust_points_COL=2|hth_COL=2 bonus points awarded.

|adjust_points_UES=1|hth_UES=1 bonus point awarded.

|adjust_points_AUD=1|hth_AUD=UES

|adjust_points_EVE=1|hth_EVE=UES

|col_CQ=#ffd700|text_CQ=Champions; Qualified to 1982 Copa Libertadores

|result1=CQ

|col_Q=#D0F0C0|text_Q=Qualified to Liguilla Pre-Copa Libertadores

|result2=Q|result3=Q|result4=Q|result5=Q

|col_RP=#FFCCCC|text_RP=To Promotion/relegation Liguilla

|result11=RP|result12=RP

|col_R=#F8A6A6|text_R=Relegated to Segunda División

|result13=R|result14=R|result15=R|result16=R

|update=complete|source=

}}

Results

{{#invoke:sports results|main

|matches_style=FBR|solid_cell=grey

|team16=UES

|name_AUD=Audax

|match_AUD_CLO=0–1

|match_AUD_COL=0–2

|match_AUD_DCO=0–0

|match_AUD_EVE=1–1

|match_AUD_DIQ=4–1

|match_AUD_DLS=2–3

|match_AUD_MAG=1–1

|match_AUD_NAV=2–2

|match_AUD_ÑUB=3–0

|match_AUD_OHI=0–2

|match_AUD_PAL=1–1

|match_AUD_SLU=2–1

|match_AUD_UCA=3–2

|match_AUD_UCH=1–4

|match_AUD_UES=0–1

|name_CLO=Cobreloa

|match_CLO_AUD=2–1

|match_CLO_COL=3–1

|match_CLO_DCO=4–0

|match_CLO_EVE=4–0

|match_CLO_DIQ=1–1

|match_CLO_DLS=4–0

|match_CLO_MAG=3–1

|match_CLO_NAV=3–1

|match_CLO_ÑUB=5–1

|match_CLO_OHI=2–0

|match_CLO_PAL=1–0

|match_CLO_SLU=4–1

|match_CLO_UCA=0–0

|match_CLO_UCH=2–0

|match_CLO_UES=1–0

|name_COL=Colo-Colo

|match_COL_AUD=1–1

|match_COL_CLO=2–0

|match_COL_DCO=3–0

|match_COL_EVE=5–2

|match_COL_DIQ=0–1

|match_COL_DLS=3–2

|match_COL_MAG=3–0

|match_COL_NAV=0–0

|match_COL_ÑUB=2–1

|match_COL_OHI=1–1

|match_COL_PAL=3–1

|match_COL_SLU=6–1

|match_COL_UCA=0–0

|match_COL_UCH=1–1

|match_COL_UES=2–1

|name_DCO=Concepción

|match_DCO_AUD=2–0

|match_DCO_CLO=0–1

|match_DCO_COL=0–4

|match_DCO_EVE=0–1

|match_DCO_DIQ=5–2

|match_DCO_DLS=0–0

|match_DCO_MAG=0–0

|match_DCO_NAV=3–1

|match_DCO_ÑUB=1–1

|match_DCO_OHI=1–1

|match_DCO_PAL=2–0

|match_DCO_SLU=0–2

|match_DCO_UCA=2–1

|match_DCO_UCH=4–0

|match_DCO_UES=0–2

|name_EVE=Everton

|match_EVE_AUD=2–2

|match_EVE_CLO=1–2

|match_EVE_COL=1–1

|match_EVE_DCO=2–2

|match_EVE_DIQ=1–3

|match_EVE_DLS=1–1

|match_EVE_MAG=1–2

|match_EVE_NAV=1–0

|match_EVE_ÑUB=2–0

|match_EVE_OHI=3–1

|match_EVE_PAL=1–1

|match_EVE_SLU=1–1

|match_EVE_UCA=0–0

|match_EVE_UCH=2–2

|match_EVE_UES=1–2

|name_DIQ=Iquique

|match_DIQ_AUD=2–1

|match_DIQ_CLO=2–1

|match_DIQ_COL=0–2

|match_DIQ_DCO=0–1

|match_DIQ_EVE=6–1

|match_DIQ_DLS=2–0

|match_DIQ_MAG=1–1

|match_DIQ_NAV=1–1

|match_DIQ_ÑUB=4–1

|match_DIQ_OHI=0–0

|match_DIQ_PAL=0–0

|match_DIQ_SLU=3–2

|match_DIQ_UCA=3–1

|match_DIQ_UCH=2–2

|match_DIQ_UES=1–3

|name_DLS=La Serena

|match_DLS_AUD=1–2

|match_DLS_CLO=2–2

|match_DLS_COL=0–2

|match_DLS_DCO=4–3

|match_DLS_EVE=3–0

|match_DLS_DIQ=2–1

|match_DLS_MAG=1–1

|match_DLS_NAV=1–2

|match_DLS_ÑUB=4–0

|match_DLS_OHI=3–0

|match_DLS_PAL=1–1

|match_DLS_SLU=0–1

|match_DLS_UCA=1–1

|match_DLS_UCH=1–0

|match_DLS_UES=4–2

|name_MAG=Magallanes

|match_MAG_AUD=1–3

|match_MAG_CLO=0–0

|match_MAG_COL=1–4

|match_MAG_DCO=2–1

|match_MAG_EVE=5–1

|match_MAG_DIQ=3–1

|match_MAG_DLS=4–0

|match_MAG_NAV=1–0

|match_MAG_ÑUB=3–1

|match_MAG_OHI=3–2

|match_MAG_PAL=4–1

|match_MAG_SLU=3–1

|match_MAG_UCA=0–2

|match_MAG_UCH=1–2

|match_MAG_UES=1–1

|name_NAV=Naval

|match_NAV_AUD=1–0

|match_NAV_CLO=0–0

|match_NAV_COL=1–1

|match_NAV_DCO=0–0

|match_NAV_EVE=2–0

|match_NAV_DIQ=4–0

|match_NAV_DLS=3–1

|match_NAV_MAG=2–2

|match_NAV_ÑUB=8–1

|match_NAV_OHI=1–0

|match_NAV_PAL=1–0

|match_NAV_SLU=4–2

|match_NAV_UCA=1–1

|match_NAV_UCH=0–1

|match_NAV_UES=0–0

|name_ÑUB=Ñublense

|match_ÑUB_AUD=2–5

|match_ÑUB_CLO=0–1

|match_ÑUB_COL=0–5

|match_ÑUB_DCO=0–0

|match_ÑUB_EVE=1–2

|match_ÑUB_DIQ=0–0

|match_ÑUB_DLS=1–2

|match_ÑUB_MAG=0–1

|match_ÑUB_NAV=1–1

|match_ÑUB_OHI=0–1

|match_ÑUB_PAL=1–0

|match_ÑUB_SLU=1–0

|match_ÑUB_UCA=1–1

|match_ÑUB_UCH=0–1

|match_ÑUB_UES=0–0

|name_OHI=O'Higgins

|match_OHI_AUD=0–0

|match_OHI_CLO=2–0

|match_OHI_COL=1–0

|match_OHI_DCO=4–1

|match_OHI_EVE=5–3

|match_OHI_DIQ=6–4

|match_OHI_DLS=0–0

|match_OHI_MAG=1–2

|match_OHI_NAV=3–1

|match_OHI_ÑUB=2–1

|match_OHI_PAL=1–1

|match_OHI_SLU=1–1

|match_OHI_UCA=1–3

|match_OHI_UCH=1–3

|match_OHI_UES=0–0

|name_PAL=Palestino

|match_PAL_AUD=0–1

|match_PAL_CLO=1–2

|match_PAL_COL=1–2

|match_PAL_DCO=2–2

|match_PAL_EVE=0–0

|match_PAL_DIQ=2–1

|match_PAL_DLS=0–0

|match_PAL_MAG=1–0

|match_PAL_NAV=1–1

|match_PAL_ÑUB=4–1

|match_PAL_OHI=2–0

|match_PAL_SLU=1–1

|match_PAL_UCA=1–1

|match_PAL_UCH=1–1

|match_PAL_UES=1–4

|name_SLU=San Luis

|match_SLU_AUD=0–0

|match_SLU_CLO=0–1

|match_SLU_COL=0–2

|match_SLU_DCO=4–1

|match_SLU_EVE=3–2

|match_SLU_DIQ=3–0

|match_SLU_DLS=0–0

|match_SLU_MAG=0–0

|match_SLU_NAV=2–3

|match_SLU_ÑUB=3–0

|match_SLU_OHI=1–1

|match_SLU_PAL=0–3

|match_SLU_UCA=2–1

|match_SLU_UCH=2–4

|match_SLU_UES=2–2

|name_UCA=U. Católica

|match_UCA_AUD=1–2

|match_UCA_CLO=2–0

|match_UCA_COL=1–2

|match_UCA_DCO=2–1

|match_UCA_EVE=2–0

|match_UCA_DIQ=1–0

|match_UCA_DLS=6–0

|match_UCA_MAG=2–1

|match_UCA_NAV=4–2

|match_UCA_ÑUB=1–0

|match_UCA_OHI=3–2

|match_UCA_PAL=0–2

|match_UCA_SLU=1–2

|match_UCA_UCH=0–1

|match_UCA_UES=0–0

|name_UCH=U. de Chile

|match_UCH_AUD=1–1

|match_UCH_CLO=0–0

|match_UCH_COL=0–2

|match_UCH_DCO=2–0

|match_UCH_EVE=2–2

|match_UCH_DIQ=0–0

|match_UCH_DLS=4–1

|match_UCH_MAG=2–1

|match_UCH_NAV=1–3

|match_UCH_ÑUB=5–0

|match_UCH_OHI=2–1

|match_UCH_PAL=1–0

|match_UCH_SLU=3–0

|match_UCH_UCA=2–1

|match_UCH_UES=3–1

|name_UES=U. Española

|match_UES_AUD=2–3

|match_UES_CLO=2–3

|match_UES_COL=1–1

|match_UES_DCO=1–1

|match_UES_EVE=1–1

|match_UES_DIQ=4–1

|match_UES_DLS=1–2

|match_UES_MAG=1–0

|match_UES_NAV=1–0

|match_UES_ÑUB=3–1

|match_UES_OHI=4–2

|match_UES_PAL=2–3

|match_UES_SLU=0–0

|match_UES_UCA=1–0

|match_UES_UCH=3–0

|update=complete|source=

}}

Topscorers

width="205"\|Name !width="205"\|Team !width="50"\|Goals
class="wikitable" style="font-size:95%; text-align:center;"
\|{{flagicon\|CHI}} Carlos Caszely	Colo-Colo	20
\|{{flagicon\|CHI}} Luis Marcoleta	Magallanes	20
\|{{flagicon\|CHI}} Víctor Cabrera	San Luis	20