2006 Maryland Senate election

The 2006 Maryland Senate elections were held on November 7, 2006, as part of the 2006 United States elections, including the 2006 Maryland gubernatorial election. All 47 of Maryland's state senators were up for reelection. Neither party netted seats, allowing Democrats to retain supermajority control of the chamber.

Closest races
Seats where the margin of victory was under 10%:• # State Senate district 31, 1.72% (gain)

• # State Senate district 3, 4.12%

• # State Senate district 30, 5.89%

Democrats

 * 1) District 11: Paula Hollinger retired to run for Congress in Maryland's 3rd congressional district.
 * 2) District 18: Sharon M. Grosfeld retired.
 * 3) District 19: Leonard Teitelbaum retired.
 * 4) District 23: Leo E. Green retired.
 * 5) District 26: Gloria G. Lawlah retired.
 * 6) District 31: Philip C. Jimeno retired.
 * 7) District 40: Ralph M. Hughes retired.

Republicans

 * 1) District 1: John J. Hafer retired.

Democrats

 * 1) District 20: Ida G. Ruben lost renomination to Jamie Raskin.
 * 2) District 21: John A. Giannetti Jr. lost renomination to James Rosapepe.

Republicans

 * 1) District 13: Sandra Schrader lost to James N. Robey.
 * 2) District 21: John A. Giannetti Jr. lost to James Rosapepe.