| William Barberie Howell | |
| Office: | Chief Justice of the United States Customs Court |
| Term Start: | 1926 |
| Term End: | 1927 |
| Predecessor: | Office established |
| Successor: | Israel F. Fischer |
| Office1: | Associate Justice of the United States Customs Court |
| Term Start1: | May 28, 1926 |
| Term End1: | April 4, 1927 |
| Appointer1: | operation of law |
| Predecessor1: | Seat established by 44 Stat. 669 |
| Successor1: | William Josiah Tilson |
| Office2: | President of the Board of General Appraisers |
| Term Start2: | 1925 |
| Term End2: | 1926 |
| Predecessor2: | Jerry Bartholomew Sullivan |
| Successor2: | Office abolished |
| Office3: | Member of the Board of General Appraisers |
| Term Start3: | February 24, 1899 |
| Term End3: | May 28, 1926 |
| Appointer3: | William McKinley |
| Predecessor3: | George H. Sharpe |
| Successor3: | Seat abolished |
| Birth Name: | William Barberie Howell |
| Birth Date: | 5 July 1865 |
| Education: | Spencerian Business College George Washington University Law School (LL.B., LL.M.) |
William Barberie Howell (July 5, 1865 – April 4, 1927) was an Associate Justice and Chief Justice of the United States Customs Court and previously was a member and President of the Board of General Appraisers.
Born on July 5, 1865, in Freehold Township, New Jersey, Howell attended the Spencerian Business College in 1882. He received a Bachelor of Laws in 1889 from Columbian University School of Law (now George Washington University Law School) and received a Master of Laws in 1890 from the same institution. He served as a clerk and private secretary with the United States Department of the Treasury in Washington, D.C. from 1882 to 1897. He serve as an assistant secretary of the Treasury in Washington, D.C. from 1897 to 1899.
Howell was nominated by President William McKinley on February 8, 1899, to a seat on the Board of General Appraisers vacated by member George H. Sharpe. He was confirmed by the United States Senate on February 20, 1899, and received his commission on February 24, 1899. He served as president from 1925 to 1926. Howell was reassigned by operation of law to the United States Customs Court on May 28, 1926, to a new Associate Justice seat authorized by 44 Stat. 669. He served as Chief Justice from 1926 to 1927. His service terminated on April 4, 1927, due to his death. He was succeeded by Associate Justice William Josiah Tilson.