An adjustable door lock for locking a misaligned or off-set door relative to a support wall adjacent to the door, said adjustable door lock comprising: a catch plate; a plurality of catch brackets connected to an anterior side of said catch plate; a catch connected to said catch plate and interfitted with said catch brackets, said catch having a channel formed therein and located anterior of said catch plate; a door plate disposed adjacent to said catch plate; and a locking bolt linearly displaced along a first linear path passing through said door plate and said channel, said locking bolt being disposed anterior of said catch plate; characterized in that a proximal end of said locking bolt extends beyond said door plate and said locking bolt includes a handle located at a proximal end thereof, said locking bolt being configured to be rotated about said first linear path thereby displacing said handle between locked and unlocked positions relative to said door plate; said door plate comprises a main section registered generally parallel to a major longitudinal length of said locking bolt, and an auxiliary section registered generally orthogonal to said main section, wherein said handle passes through said auxiliary section and comprises a first section disposed proximal to said auxiliary section, and a second section disposed distal to said auxiliary section, whereby, when said second section is disposed subjacent to said auxiliary section, said locking bolt is prohibited from axially sliding along said first linear path, and in that when said locking bolt is displaced along said first linear path, said locking bolt at least partially passes through said door plate and said channel such that said locking bolt contacts said catch and causes said catch to automatically adjust along a second linear path anterior of said catch plate and orthogonally registered relative to said first linear path. a catch plate; a plurality of catch brackets connected to an anterior side of said catch plate; a catch connected to said catch plate and interfitted with said catch brackets, said catch having a channel formed therein and located anterior of said catch plate; a door plate disposed adjacent to said catch plate; and a locking bolt linearly displaced along a first linear path passing through said door plate and said channel, said locking bolt being disposed anterior of said catch plate; characterized in that a proximal end of said locking bolt extends beyond said door plate and said locking bolt includes a handle located at a proximal end thereof, said locking bolt being configured to be rotated about said first linear path thereby displacing said handle between locked and unlocked positions relative to said door plate; said door plate comprises a main section registered generally parallel to a major longitudinal length of said locking bolt, and an auxiliary section registered generally orthogonal to said main section, wherein said handle passes through said auxiliary section and comprises a first section disposed proximal to said auxiliary section, and a second section disposed distal to said auxiliary section, whereby, when said second section is disposed subjacent to said auxiliary section, said locking bolt is prohibited from axially sliding along said first linear path, and in that when said locking bolt is displaced along said first linear path, said locking bolt at least partially passes through said door plate and said channel such that said locking bolt contacts said catch and causes said catch to automatically adjust along a second linear path anterior of said catch plate and orthogonally registered relative to said first linear path.