Does the shebang determine the shell which runs the script=?iso-8859-1?Q?=3F_=96_unix.stackexchange.com?=

Does the shebang determine the shell which runs the script? –
unix.stackexchange.com

This may be a silly question, but I ask it still. If I have declared a
shebang #!/bin/bash in the beginning of my_shell_script.sh, so do I always
have to invoke this script using bash ...