Magnesium　(Mg)　alloys　have　remarkable　physical　and　mechanical　properties　for　various　aerospace　applications.　However,　the　high　corrosion　susceptibility　and　low　wear　resistance　of　Mg　alloys　restrict　their　wider　use.　To　overcome　these　problems,　6061　Al　alloy　coatings　were　fabricated　via　the　cold　spraying　process　on　the　AZ91D　Mg　alloy　substrate　and　a　detailed　comparative　study　on　the　wear　and　corrosion　properties　was　carried　out.　The　microstructure　analysis　of　the　compact　coatings　revealed　low　porosity　with　no　phase　change　during　the　deposition　process.　The　coatings　showed　improved　corrosion　resistance　up　to　seven　times　as　confirmed　by　potentiodynamic　polarization　and　electrochemical　impedance　spectroscopy　measurements　in　3.5　wt.%　NaCl　aqueous　solution.　The　as-deposited　coatings　were　also　compared　with　commercial　bulk　alloys　of　similar　composition　for　their　suitability　to　industrial　applications.　The　tribological　behavior　of　the　coatings　and　substrate　was　investigated　using　tribometer.　The　wear　resistance　of　the　coatings　improved　more　than　two　orders　of　magnitude　as　compared　to　the　substrate.　Abrasive　and　oxidative　wear　mechanisms　were　dominant　in　the　coatings　and　substrate.　The　results　showed　that　cold　spraying　of　6061　Al　alloy　on　AZ91D　Mg　alloy　could　be　an　auspicious　process　to　overcome　the　poor　corrosion　and　wear　resistance　of　this　Mg　alloy　for　practical　industrial　applications.