2005 SAP Open

{{Short description|Tennis tournament}}

{{Use mdy dates|date=January 2025}}

{{TennisEventInfo|2005|SAP Open|

| date=February 7–13

| edition=117th

| category=ATP International Series

| prize_money=$355,000

| draw=32S / 16D

| surface=Hard / indoor

| location=San Jose, California, U.S.

| venue=HP Pavilion at San Jose

| champs= {{flagicon|USA}} Andy Roddick{{cite web|title=2005 San Jose – Singles draw|url=https://www.atptour.com/en/scores/archive/san-jose/424/2005/draws?matchtype=singles|publisher=Association of Tennis Professionals (ATP)}}

| champd= {{flagicon|AUS}} Wayne Arthurs / {{flagicon|AUS}} Paul Hanley{{cite web|title=2005 San Jose – Doubles draw|url=https://www.atptour.com/en/scores/archive/san-francisco/424/2005/draws?matchtype=doubles|publisher=Association of Tennis Professionals (ATP)}}

| before_name=Siebel Open

| main_name=Pacific Coast Championships

}}

The 2005 SAP Open was a men's tennis tournament played on indoor hard courts. It was the 117th edition of the event and was part of the International Series of the 2005 ATP Tour. It took place at the HP Pavilion in San Jose, United States, from February 7 through February 13, 2005. First-seeded Andy Roddick won his second consecutive singles title at the event.{{cite web|title=Roddick overwhelms Saulnier in SAP Open final|url=https://archive.seattletimes.com/archive/20050214/digs14/roddick-overwhelms-saulnier-in-sap-open-final|publisher=The Seattle Times|date=February 14, 2005}}