1990 Maryland Senate election

The 1990 Maryland Senate election were held on November 6, 1990, to elect senators in all 47 districts of the Maryland Senate. Members were elected in single-member constituencies to four-year terms. These elections were held concurrently with various federal and state elections, including for Governor of Maryland.

Closest races
Seats where the margin of victory was under 10%:• # State Senate district 14, 1.34% (gain)

• # State Senate district 5, 6.59%

• # State Senate district 8, 8.36%

• # State Senate district 43, 8.41%

Democrats

 * 1) District 34: Catherine Riley retired.

Republicans

 * 1) District 1: John N. Bambacus retired.

Democrats

 * 1) District 10: Francis X. Kelly lost renomination to Janice Piccinini.
 * 2) District 17: S. Frank Shore lost renomination to Mary H. Boergers.
 * 3) District 18: Margaret Schweinhaut lost renomination to Patricia R. Sher.
 * 4) District 26: Frank Komenda lost renomination to Gloria G. Lawlah.
 * 5) District 40: Troy Bailey lost renomination to Ralph M. Hughes.

Democrats

 * 1) District 2: Patricia K. Cushwa lost to Donald F. Munson.
 * 2) District 14: Edward J. Kasemeyer lost to Christopher J. McCabe.

Detailed results
All election results are from the Maryland State Board of Elections.