List of Best Selling Soul Singles number ones of 1971

Billboard published a weekly chart in 1971 ranking the top-performing singles in the United States in soul music and related African American-oriented music genres; the chart has undergone various name changes over the decades to reflect the evolution of such genres and since 2005 has been published as Hot R&B/Hip-Hop Songs. In 1971, it was published under the title Best Selling Soul Singles, and 21 different singles topped the chart.

In the issue of Billboard dated January 2, King Floyd reached number one with "Groove Me", displacing the final number one of 1970, "Stoned Love" by the Supremes. It held the top spot for three weeks, was replaced for a single week by "If I Were Your Woman" by Gladys Knight & the Pips, and then returned to number one for one further week. "Groove Me" was Floyd's first number one but proved to be his only single to reach the top spot. It was replaced at number one by "(Do The) Push and Pull (Part 1)" by Rufus Thomas, another first-time chart-topper. Thomas had first recorded in 1941, but did not achieve his greatest success until the early 1970s, when he was well into his 50s; as with Floyd, his 1971 number one was his only chart-topping single. Honey Cone, Jean Knight, Denise LaSalle, the Persuaders, and the Chi-Lites also reached number one in 1971 for the first time in their respective careers.

Two singles tied for the year's longest-running number one, both spending five weeks atop the chart. In March and April, Marvin Gaye spent five weeks at number one with "What's Going On" and Jean Knight achieved the same feat in with "Mr. Big Stuff" beginning with the issue dated July 3. Gaye had the highest cumulative total number of weeks atop the chart of any act in 1971, spending a total of nine weeks in the top spot with "What's Going On", "Mercy Mercy Me (The Ecology)" and "Inner City Blues (Make Me Wanna Holler)". All three tracks were taken from the album What's Going On, a politically-charged concept album which has been regarded by many critics as one of the greatest albums of all time. Three other acts achieved more than one number one in 1971: James Brown, Aretha Franklin, and Honey Cone. The year's final soul number one was "Family Affair" by Sly and the Family Stone, which reached number one in the issue of Billboard dated December 4 and stayed there for the remainder of the year. It also topped the all-genre Hot 100 chart, as did "Just My Imagination (Running Away with Me)" by the Temptations and Honey Cone's "Want Ads".