An ash catcher assembly for catching and containing ash and debris that falls through openings in the bottom of a barbecue grill is disclosed. The ash catcher assembly includes a mounting member capable of being removably connected to the barbecue grill, and a basket secured adjacent a bottom of the mounting member. The mounting member has a body portion and at least two resilient connecting members. The resilient connecting members have a transverse tab adjacent an end thereof for interconnecting with the barbecue grill. Generally, the transverse tabs snap into mating openings of the barbecue grill for connecting the ash catcher assembly to the barbecue grill. The basket has an open top end, a closed bottom end, a side wall connecting the top end and the bottom end, and a cavity therein to hold the ash that falls from the kettle. Protrusions and a handle extending from the sidewall of the basket mate with corresponding components of the mating member for removably securing the basket to the mating member.