Abstract: A reentrable moisture barrier for use in enclosures for cables and or cable components to prevent entry of ground moisture is disclosed. The barrier is inexpensive and easy to install. One example of the invention is in conjunction with an enclosure or housing with a first cover portion removable from a second base portion. The improved reentrable moisture barrier is formed of an inexpensive flexible sheet which may be deformed and replaceably inserted in the enclosure to prevent ground moisture from migrating from the open bottom of the housing to the top of the first cover portion where it may condense and be deposited on the cables and cable components. The reentrable barrier is wrapped around and stuffed between the cables and the interior of the second base portion and the first cover portion is replaced. Ground moisture is thus prevented from reaching the interior of the first cover portion.