US national team
Lawson was selected to be a member of the United States national team at the 2001 World University Games held in Beijing, China. After winning the opening game easily, the USA team faced Canada and lost a close game 68–67. Needing a win to remain in medal contention, Lawson scored 25 points to help the USA team defeat Japan, and earn a spot in the quarterfinals. The USA team fell behind by 12 points against undefeated Russia, but came back to win the game by eleven points. The next game was against the unbeaten host team China, and the USA team won 89–78. The USA team won their next two games to set up the gold medal game; a rematch against the host team. China would stay close early, but the USA team prevailed and won the gold medal with a score of 87–67. Lawson was the third leading scorer on the team with 12.0 points per game and led the team in assists and steal with 16 assists and 12 steals over the course of the event.
On July 10, 2008, Lawson was selected to represent the United States with the USA women's national basketball team at the 2008 Summer Olympics in Beijing, China. She helped the United States capture the gold medal, and led the team in points (15) during the gold medal game against Australia, going a perfect 5-5 from the field and 4-4 from the free throw line.
Lawson was invited to the USA Basketball Women's National Team training camp in the fall of 2009. The team selected to play for the 2010 FIBA World Championship and the 2012 Olympics was chosen from these participants. Lawson was one of 21 finalists for the U.S. Women's Olympic Basketball Team Roster. The 20 professional women's basketball players, plus one collegiate player (Brittney Griner), were selected by the USA Basketball Women's National Team Player Selection Committee to compete for the final roster to represent the US at the 2012 Olympics in London, United Kingdom. However, Lawson did not make the final roster.
