Denis Grabe (born February 22, 1990, in Tallinn, Estonia), is an Estonian professional pool player. Grabe reached the quarter-final of the 2016 WPA World Nine-ball Championship, before losing to Cheng Yu-hsuan 11–3. Grabe won two consecutive Euro Tour tournaments in a row in 2014, at the Austria Open, and Slovenian Open. In 2018, he also reached the final of the 2018 Sankt Johann im Pongau Open, losing the final 9–5 to Alexander Kazakis.