You can do:
string dirName = new DirectoryInfo(@"C:\Users\me\Projects\myProject\").Name;
Or use Path.GetFileName
like (with a bit of hack):
string dirName2 = Path.GetFileName(
@"C:\Users\me\Projects\myProject".TrimEnd(Path.DirectorySeparatorChar));
Path.GetFileName
returns the file name from the path, if the path is terminating with \
then it would return an empty string, that is why I have used TrimEnd(Path.DirectorySeparatorChar)