کوسموس 140 ((روسي: Космос 140) د فضا 140 په معنی) د سایوز فضای بیړۍ بې پیلوټه الوتنه وه .[۳] It was the third attempted test flight of the Soyuz 7K-OK model, after orbital (Kosmos 133) and launch (Soyuz 11A511) failures of the first two Soyuz spacecraft.[۴]