Here is a list of black Republican candidates in 2010 provided by the Frederick Douglass Foundation:
Senate candidates:
Marion Thorpe, Florida
Larry Linney, North Carolina
Michael Williams, Texas
Congressional candidates:
Lester Phillip, Alabama’s 5th District
Princella Smith, Arkansas’s 1st District
Vernon Parker, Arizona’s 3rd District
Virginia Fuller,California’s 7th District
Star Parker, California’s 37th District
Chrystopher Smith, California’s 39th District
Mason Weaver, California’s 53rd District
Ryan Frazier, Colorado’s 7th District
Prince Brown, Florida’s 8th District
Eddie Adams, Florida’s 11th District
Corey Poitier, Florida’s 17th District
Allen West, Florida’s 22nd District
Deon Long, Florida’s 24th District
Cory Ruth, Georgia’s 4th District
Deborah Honeycutt, Georgia’s 13th District
Rupert Parchment, Georgia’s 13th District
Isaac Hayes, Illinois’s 2nd District
Robert Broadus, Maryland’s 4th District
Charles Lollar, Maryland’s 5th District
Bill Hardiman, Michigan’s 3rd District
Angela McGlowan, Mississippi’s 1st District
Barb Davis White (self-described conservative, running as Independent), Minnesota’s 5th District
Martin Baker, Missouri’s 1st District
Shannon Wright, New Jersey’s 6th District
Michael Faulkner,New York’s 15th District
Jerry Grimes, North Carolina’s 1st District
Lou Huddleston, North Carolina’s 8th District
Bill Randall, North Carolina’s 13th District
Tim Scott, South Carolina’s 3rd District
Jean Howard-Hill, Tennessee’s 3rd District
Charlotte Bergmann, Tennessee’s 9th District
William Hurd, Texas’s 23rd District
Stephen Broaden, Texas’s 30th District
David Castillo, Washington’s 3rd District