Bottling lines are production lines that fill a product, generally a beverage, into bottles on a large scale.

In the wine industry, this typically involves drawing wine from a holding tank and filling it into bottles in a filling machine (filler), which are then corked, encapsuled, labeled and packed into cases or cartons. Before the advent of mobile, truck-mounted bottling lines, the capital investment was considerable. A mobile bottling line can be rented for any period of time, and makes it easy for even the smallest wineries to perform estate bottling (also known as chateau bottling). Many smaller wineries however, continue to send their bulk wine to large facilities for contract bottling.