FCR 2001 Duisburg (full name: Fußballclub Rumeln 2001 Duisburg) was a German women's football club from Duisburg. The first team played in the Bundesliga. They originate from a women's team formed in 1977 under the umbrella of FC Rumeln-Kaldenhausen and have existed as an independent club since 8 June 2001. The colors of the 400-member-strong club are green and white. The first team of FCR 2001 Duisburg, who carry the nickname of "Die Löwinnen" (lionesses), have played in the Bundesliga since gaining promotion in 1993. Winning the UEFA Women's Cup in 2009 and with past success in the German championship (2000) and the cup (twice), FCR Duisburg was one of the top teams in German women's football. In 2013 the club filed for insolvency and players joined and formed a new women's section at MSV Duisburg.

The roots of the club can be traced back to the year 1955 and the foundation of FC Rumeln-Kaldenhausen. A women's football section was established in 1977. In 1990 they were promoted to the Regionalliga West. In their first season they finished sixth, but the following season were runners-up, one point behind STV Lövenich. Going into the last game of the resulting promotion play-off, Duisburg only had to draw against Lövenich to go up. However, playing at home Lövenich won 5–3 and Delmenhorst managed to squeeze past Duisburg with a 6–0 win over SSV Turbine Potsdam

In the following 1992–93 season, Duisburg were champions of the Regionalliga West, two points ahead of SG Wattenscheid 09. The promotion play-offs went more successfully this time and they won promotion in their penultimate game, winning 6–2 against Wattenscheid. Their single defeat in the play-offs was against fellow promotion winners Schmalfelder SV. The first season in the Bundesliga was marked by struggle against relegation. In the end they finished eighth in the Northern Group and were able to stay up while SV Bergisch Gladbach 09 and local Rumeln rivals KBC Duisburg, clubs both full of tradition, had to suffer demotion to the second tier.

For the 1994–95 season, the team was considerably strengthened. The most spectacular newcomer was the international Martina Voss. Following the birth of her daughter, she no longer wanted to travel regularly between her hometown of Duisburg and her club TSV Siegen. From relegated local rivals KBC came the later international Melanie Hoffmann. For an extended period, FCR were running head-to-head with TSV Siegen for second position in the Northern Group, a position which was awarded by a place in the semi-finals of the German Championship. The matter was settled favorably on the 15th match day, when Rumeln beat Siegen 4–3. Rumeln finished second and Maren Meinert was top scorer in the Northern Group with 21 goals. In the semi-final they met FSV Frankfurt, who had won all their games in the Southern Group. After a 2–2 draw in the first leg, Frankfurt won the return match by 5–1 and went on to win the Championship beating Grün-Weiß Brauweiler.

In 1995, striker Inka Grings transferred from Garather SV. She was to become one of the most successful goalscorers in the Bundesliga during the 1995–96 season. Finishing third in the Northern Group, the team missed out on the semi-finals this time. On the other hand, they were more successful in the DFB Cup where they reached the semi-finals for the first time but lost to the later winners FSV Frankfurt 2–0. The first title achieved in the whole history of the club was gained on 3 February 1996 in Koblenz when, in the DFB-Hallenpokal FCR beat TSV Siegen 3–2.

For most teams, the 1996/97 season was dominated by thoughts of qualification for the new single-division Bundesliga. Duisburg were successful in the Northern Group and going into the last game, the team had two points advantage in leading position over Grün-Weiß Brauweiler who were indeed their opponents in this last game, played at Duisburg. However, Brauweiler proved better at subduing their nerves and came away 5–4 winners. In the semi-finals, the team were able to turn a 2–1 defeat from the first leg against FSV Frankfurt into victory with a 3–1 win in the second leg. On 8 June, Duisburg faced Brauweiler again in the final and 5,000 spectators in Homberg witnessed a dramatic game. After 90 minutes the game was scoreless. Shortly after the beginning of extra time, Grings put her team in front but three minutes before the final whistle, Patricia Menge equalized. The decision had to go to a penalty shootout. With the situation 4–3 for Brauweiler Daniela Arndt missed her kick. Claudia Klein then scored for Brauweiler, thus making her team the German champions.

During the first season of the new single-division Bundesliga, FC Rumeln-Kaldenhausen changed their name to FCR Duisburg 55. After a 6–1 victory over Hamburger SV FCR became the initial table leaders, but finished the season in third place. The team were more successful in the DFB-Cup, where they reached the final for the first time ever. In a game producing more goals than any final in the cup's history, the champions FSV Frankfurt were beaten 6–2. With three goals, Inka Grings proved to be their most impressive player

For the 1998–99 season, international Kerstin Stegemann came to Duisburg from FC Eintracht Rheine. The team became engaged in a protracted and exciting race for the title with 1. FFC Frankfurt. The outcome was decided on the 17th match day when Duisburg only came away with a goalless draw at FSV Frankfurt, while 1 FFC Frankfurt beat Brauweiler 6–1. Frankfurt became champions with Duisburg again as runners-up. With 25 goals, Inka Grings secured for herself the title of Torschützenkönigin. The Duisburgerinnen were unable to repeat their cup win. In the final Duiisburg were beaten 1–0 by 1. FFC Frankfurt.