Daniel Kiernan (born 27 March 1980) is a British former professional tennis player.

Kiernan made main draw appearances in ATP Tour tournaments in 2004 at Queen's Club and Nottingham, both with David Sherwood, partnering with the same player to make his Wimbledon debut that year.

[2] In 2005 he reached his best doubles ranking of 150 and made the second round of Wimbledon, when he and James Auckland teamed up to win their first round match over Kevin Kim and Lee Hyung-taik, from two-sets down.

Their second round opponents were the second seeded Bryan brothers, who they took a set off before losing in four.

[3] He also partnered with Jonathan Marray for his third ATP Tour main draw at the 2005 Nottingham Open, in what was his final year on the professional tour.