1907 U.S. National Championships (tennis)

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

{{Use American English|date=July 2023}}

{{TennisEventInfo|1907|U.S. National Championships|

| date = August 20–28 (M)
June 25 – July 2 (W)

| edition = 27th

| category = Grand Slam

| location = Newport, R.I., United States (M)
Philadelphia, PA, United States (W)

| surface = Grass

| champms={{flagicon|USA}} William Larned{{cite book|author=Bud Collins|title=The Bud Collins History of Tennis|year=2010|publisher=New Chapter Press|location=[New York]|isbn=978-0942257700|pages=454–483|edition=2nd}}

| champws={{flagicon|USA}} Evelyn Sears

| champmd={{flagicon|USA}} Fred Alexander / {{flagicon|USA}} Harold Hackett

| champwd={{flagicon|USA}} Marie Wimer / {{flagicon|USA}} Carrie Neely

| champxd={{flagicon|USA}} May Sayers / {{flagicon|USA}} Wallace F. Johnson

}}

List of champions of the 1907 U.S. National Championships tennis tournament (now known as the US Open). The men's tournament was held from August 20 to August 28 on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The women's tournament was held from June 25 to July 2 on the outdoor grass courts at the Philadelphia Cricket Club in Philadelphia, Pennsylvania. It was the 27th U.S. National Championships and the third Grand Slam tournament of the three played that year.