2003 Tata Open
Date	30 December 2002 – 5 January
Edition	8th
Category	International Series
Draw	32S / 16D
Prize money	$355,000
Surface	Hard / outdoor
Location	Chennai, India
Venue	SDAT Tennis Stadium
Champions
Singles
Paradorn Srichaphan[1]
Doubles
Julian Knowle / Michael Kohlmann[2]
← 2002 · Maharashtra Open · 2004 →

The 2003 Tata Open was a men's tennis tournament played on outdoor hard courts at the SDAT Tennis Stadium in Chennai, India and was part of the International Series of the 2003 ATP Tour. The tournament ran from 30 December 2002 through 5 January 2003. Second-seeded Paradorn Srichaphan won the singles title.

Finals

Singles

Paradorn Srichaphan defeated Karol Kučera 6–3, 6–1

• It was Srichaphan's 1st title of the year and the 3rd of his career.

Doubles

Julian Knowle / Michael Kohlmann defeated František Čermák / Leoš Friedl 7–6^(7–1), 7–6^(7–3)

• It was Knowle's 1st title of the year and the 3rd of his career. It was Kohlmann's only title of the year and the 2nd of his career.