1998 ATP German Open

{{For|WTA tour event|1998 WTA German Open}}

{{TennisEventInfo|1998|ATP German Open|

| date=4–11 May

| edition=92nd

| category=ATP Super 9

| prize_money=$2,200,000

| draw=56S / 28D

| surface=Clay / outdoor

| location=Hamburg, Germany

| venue=Rothenbaum Tennis Center

| champs= {{flagicon|ESP}} Albert Costa{{cite web|title=1998 Hamburg – Singles draw|url=https://www.atptour.com/en/scores/archive/hamburg/414/1998/draws?matchtype=singles|publisher=Association of Tennis Professionals (ATP)}}

| champd= {{flagicon|USA}} Donald Johnson / {{flagicon|USA}} Francisco Montana{{cite web|title=1998 Hamburg – Doubles draw|url=https://www.atptour.com/en/scores/archive/hamburg/414/1998/draws?matchtype=doubles|publisher=Association of Tennis Professionals (ATP)}}

}}

The 1998 German Open was a men's tennis tournament played on outdoor clay courts. It was the 92nd edition of the Hamburg Masters (German Open), and was part of the ATP Super 9 of the 1998 ATP Tour. It took place at the Rothenbaum Tennis Center in Hamburg, Germany, from through 4 May through 11 May 1998.{{Cite web|url=http://www.itftennis.com/procircuit/tournaments/men%27s-tournament/info.aspx?tournamentid=1010001246|title=1998 Hamburg|publisher=International Tennis Federation|access-date=15 December 2014|archive-date=18 March 2016|archive-url=https://web.archive.org/web/20160318044718/http://www.itftennis.com/procircuit/tournaments/men%27s-tournament/info.aspx?tournamentid=1010001246|url-status=dead}}

The men's field was headlined by ATP No. 1, Indian Wells, Miami, Auckland titlist, Australian Open finalist Marcelo Ríos, Antwerp winner, Indian Wells and 1997 U.S. Open runner-up Greg Rusedski and Marseille runner-up, 1994 Hamburg winner Yevgeny Kafelnikov. Other top seeds competing were Dubai titlist Àlex Corretja, Gustavo Kuerten, Karol Kučera, Richard Krajicek and Alberto Berasategui.