Yes, no problem. You can also use a variable in the whole process. For example if you need to load a series of modules,

my %objects;
for my $class (@available_classes) {
    eval qq(require $class);
    if ($@) { # you can make it die() here, if you want
        warn "Failed to load class '$class': $@";
        next;
    }
    $objects{$class} = $class->new;
}
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Because the way require works, you have to eval the require $class statement in double quotes so the $class becomes bareword.

Or, you may have to pick a correct class by certain criteria. You can use UNIVERSAL::require in place of the eval statement and $@ checking.

use UNIVERSAL::require;
my $class = get_implementor_class(); #defined somewhere
$class->use or die $@;
my $object = $class->new;
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