Anna-Lena Grönefeld (born on June 4, 1985 in Nordhorn, Lower Saxony, then West Germany) is a professional tennis player from Germany. She turned professional in 2003.

As of February 2006, Grönefeld was the No. 1 tennis player from Germany. She was coached and trained by Rafael Font de Mora in Scottsdale, Arizona until 2006. Anna-Lena is currently coached by former German pro tennis player Dirk Dier (since the WTA tournament in Stuttart in October 2006). She now lives and trains in Saarbrücken, Germany.

In June, 2003 she captured the prestigious French Open Junior title, becoming the first player from Germany since 1957 to accomplish this feat. In 2002 she was the Singles Champion of both the Belgium and Frankfurt International Championships and a finalist at the Orange Bowl. In July 2003, she won the Apple and Eve Newsday Long Island Classic, held in Woodbury, New York, defeating Bethanie Mattek in the final. She is an accomplished doubles player winning the French Open title and reaching the finals at Wimbledon. As a result of her tennis successes in 2003, Grönefeld had achieved the Junior World ranking of #1 in singles and doubles. She launched her professional career début under the direction of the USA Academy and Rafael Font de Mora.