The 1998 Croatian Indoors was a men's tennis tournament played on indoor carpet courts in Split, Croatia, that was part of the World Series of the 1998 ATP Tour. It was the only edition of the tournament and was held from 2 February to 9 February 1998. Second-seeded Goran Ivanišević won the singles title.
See main article: 1998 Croatian Indoors – Singles.
Greg Rusedski, 7–6(7–3), 7–6(7–5)See main article: 1998 Croatian Indoors – Doubles.
Martin Damm / Jiří Novák defeated 
Fredrik Bergh / Patrik Fredriksson, 7–6, 6–2