1984 Union 76 Pacific Southwest Open

{{Use mdy dates|date=August 2023}}

{{TennisEventInfo|1984|Union 76 Pacific Southwest Open|

| date=September 10–16

| edition=58th

| category=Grand Prix

| prize_money=$200,000

| draw=48S / 24D

| surface=Hard / outdoor

| location=Los Angeles, California, U.S.

| venue=Los Angeles Tennis Center

| attendance=41,677

| champs={{flagicon|USA}} Jimmy Connors{{cite web|title=1984 Los Angeles – Singles draw|url=http://www.atptour.com/en/scores/archive/los-angeles/423/1984/draws?matchType=singles|publisher=Association of Tennis Professionals (ATP)}}

| champd={{flagicon|USA}} Ken Flach / {{flagicon|USA}} Robert Seguso{{cite web|title=1984 Los Angeles – Doubles draw|url=http://www.atptour.com/en/scores/archive/los-angeles/423/1984/draws?matchType=doubles|publisher=Association of Tennis Professionals (ATP)}}

| after_name=Volvo Tennis Los Angeles

| main_name=Los Angeles Open (tennis) {{!}} Pacific Southwest Open

}}

The 1984 Union 76 Pacific Southwest Open was a men's tennis tournament played on outdoor hard courts at the newly-opened Los Angeles Tennis Center{{efn|name=latc|The Los Angeles Tennis Center at UCLA was opened in May 1984 and hosted the demonstration tennis event of the 1984 Summer Olympics.}} in Los Angeles, California in the United States. The event moved back from April to the more traditional September time slot and was part of the 1984 Volvo Grand Prix circuit. It was the 58th edition of the Pacific Southwest tournament and was held from September 10 through September 16, 1984. First-seeded Jimmy Connors won the singles title and the corresponding $36,000 first-prize money.{{cite book|title=World of Tennis 1984 : The Official Yearbook of the International Tennis Federation|year=1984|publisher=Willow Books|location=London|isbn=0002181223|pages=162–163|editor=John Barrett}}