TD Ballpark, Baseball stadium in Dunedin, United States.

TD Ballpark is a baseball stadium in Dunedin, Florida, with a wide, low grandstand under a long dark blue roof edged in white. The light blue upper facade reads "WELCOME TO KNOLOGY PARK" in white block capitals above rows of dark green seats. The field has green turf and a dirt infield, and a tall metal light tower rises on the left.

The Blue Jays began spring training in Dunedin in 1977 at Grant Field, a 1930 ballpark holding 3,417 and named for former mayor Albert J. Grant, who donated the land. In 1990 the city built Dunedin Stadium on the same site for about $2.4 million, with 6,106 seats; the playing field and clubhouses stayed. A $102 million rebuild reopened on February 24, 2020.

The stadium draws fans from both Florida and Canada through spring training games and minor league competitions featuring the Toronto Blue Jays. This cross-border connection shapes how people gather here during the season.

The stadium stands on the site of the former Grant Field, which opened in 1930 and was named for mayor Albert J. Grant, who donated the land. The playing field and team clubhouses were left unchanged when the new stadium was built in 1990. The 2019–2020 rebuild, designed by Populous, added air-conditioned skyboxes and three picnic areas.

The Blue Jays' first exhibition game at the site was played on March 11, 1977, a 3–1 win over the New York Mets at old Grant Field. Dunedin has been the franchise's only spring training home since it joined the league in 1977.