Dennis Jerome Seeley (born November 28, 1989) is an American professional basketball player for U-BT Cluj-Napoca of the Romanian Liga Națională and the EuroCup.

[3] On November 1, 2014, Seeley was selected by the Delaware 87ers with the 19th overall pick in the 2014 NBA Development League Draft.

[4] On April 9, 2015, after the end of the 2014–15 D-League season, he signed a one-month contract with La Bruixa d'Or Manresa of the Spanish Liga ACB.

[7] On June 28, 2016, Seeley signed a one-year deal, with an option for another one, with Israeli club Maccabi Tel Aviv.

[10] On July 29, 2019, Seeley signed with a one-year deal, with an option for another one, Spanish club Casademont Zaragoza.