Naoki Tsukahara (塚原 直貴, born 10 May 1985) is a Japanese track and field sprinter who specialises in the 100 metres.

After coming sixth over 200 m at the 2004 Japan Student Athletics Championships, he returned two years later to place runner-up in both short sprints.

In the 100 m semi-finals Tsukahara achieved a time of 10.16 seconds, his best of the season, but finished in seventh place, failing to qualify for the final.

[2] Together with Shingo Suetsugu, Shinji Takahira and Nobuharu Asahara, Tsukahara also competed in the 4x100 metres relay final at the 2008 Summer Olympics.

[2] However, in January 2017, Jamaica's gold medal was revoked after one of their athletes was found to have been doping, meaning that the Japanese team received silver.