(shareware) a launcher that uses 3D to give you a commanding view of all your favorite files and applications in one place, so you can quickly and easily get to each one of them
ABCLaunch is a mouse-less launcher. ABCLaunch incrementally searches applications whose name matches keywords you input.
Clonch is a little keyboard-centric desktop utility for Mac OS X that makes launching applications quick and easy.
a clock that doubles as a command-line launcher. You can click on the clock to get a command-line (try "vocab" to see a list of commands available), or control-click to access the contextual menu
(shareware) Fidget Menu is a small status menu application for launching applications, urls, documents and more. Fidget Menu also offers a number of handy tasks like restart, sleep, System preferences and POP email monitoring. Fidget Menu is easy to set up and easy to use.
fourBar is a minimal application launching bar for POSIX systems. It uses a simple four-button interface to launch commonly used applications. Default applications are a terminal, a file browser, an editor, and a Web browser.
Kysrun starts applications, bookmarks, and opens documents by typing few key strokes. Starting applications is much faster than hunting for the requested app in menus and submenus. It has few depencies, and was originally written for the ASUS Eee PC. It was inspired by application launchers like Katapult, Launchy, or Mercury.
Linked Applications Launcher
Linked Applications Launcher allows you to automatically launch, quit or kill applications when other ones launch or quit.
LockOutApps is a combination of system preference and background application. This combination allows you to prohibit selected applications to launch. You can optionally set the days and time of enforcement.
Namely is possibly the fastest way to open applications. And unlike some other launchers, it doesn't require any learning. You simply activate it using your preferred keyboard shortcut, start typing part of an application's name and see a list of matches as you type.
OpenAll simultaneously opens all applications and utilities on a machine.
(commercial) Overflow is an application designed to quickly launch applications, open documents, or access folders while keeping the size of your dock in check. Anything you want can be added to the Overflow interface, making it accessible through a few simple mouse clicks or keystrokes. The interface is resizable, and fully customizable.
this is basically a reincarnation of the Classic application launcher found on OS 9. It does not replace the Dock but rather enhances some of its features. Paradocks creates a floating window containing the icons of all currently running applications, and allows you to easily switch between applications by clicking the icons
QuickSilver is an application launcher, designed to be functional and look good, at the same time. It is a unified, extensible interface for working with applications, contacts, music, and other data.
Spark is a powerful, and easy shortcuts manager. With Spark you can create Hot Keys to launch applications and documents, execute AppleScript, control iTunes, and more...
You can also export and import your Hot Keys library, or save it in HTML format to print it.
an easy-to-use and easy-to-configure application launcher for OS X. It displays an Apps menu at the top of your screen listing all your applications in alphabetical order?no matter what folder they appear in
X11 Extension makes it easier to launch Apple X11 apps.
XDroplets is a set of launchers that better integrate X11 programs with the MacOS X environment. X11 programs can be launched via the Finder or Dock.