I don't know of a similar cliff-edge situation elsewhere where multiple services were cut in a short period of time.
But there are many cases of simple neglect, service abandonments and "closure by stealth", even in "modern" countries like France and Germany.
I have the impression that a number of Western European countries had, already as at about two-thirds of the way through the 20th century, lost services on many of their lesser lines -- "randomly here-and-there date-wise", rather than as a planned campaign or purge a la Beeching. Belgium I think is a case in point, re branch-line parts of the -- at peak, very dense -- standard-gauge State Railways system; this, not even considering the at-peak enormous kilometrage of "Vicinal" metre-gauge lines, very little of which now remains in any way or shape.
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@MarcVD -- your post #10 appeared while I was typing this of mine -- I was thus unaware of yours !)
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France lost alot of its rail network in 1914 it had about 37,000 miles of which about 1/3rd was narrow gauge.
By the 1950s the narrow gauge lines were virtually extinct and the network today is about 25,000 miles - which includes the building of the TGV lines since the 1980s.
My bolding -- being a bit annoyingly pedantic, I feel that this perhaps overstates the case a little. A fair amount of narrow gauge -- though way under the huge (as per post, roughly 12,000 miles) quantity that there had been at peak -- was still operational at the beginning of the 1950s: much of this closed during that decade, but a more than negligible quantity remained active at the beginning of the '60s -- a lot of which went in turn, in the course of that decade. France still has active today, a perhaps surprising half-dozen-odd metre-gauge concerns in commercial service, plus a bit on the preserved / heritage scene.
France suffered a Beeching-like cut as early as 1938 under the name of "coordination" between rail and road services, just after SNCF was formed through the nationalization of the 5 former railway companies. Approx. 10,000 km of railway lines lost passenger service at the time (and apart from one or two odd exceptions, never recovered it since).
Although quite shortly after nationalisation / "co-ordination", World War II's shortages, especially of fuel oil -- intensified when the country fell under German domination in 1940 -- resulted in wartime resumption of passenger services on a considerable number of lines which had lost them in the 1938 closure programme: and ditto in addition, on some lines operated by small local concerns -- standard, and metre, gauge -- not nationalised in '38, but which had in that general period, undergone passenger closure. (One feels: a little bit of consolation, for railway enthusiasts anyway, in that very horrible few years of France's history). Nearly all such lines lost their passenger services again, very shortly after the end of the war.
The local service on many French regional lines also seems to be sparse, for example some stations might see a train at 5am, 6am, 11am, 1pm, 7pm which is not particularly useful.
By my understanding -- passenger services on French lesser lines have tended to be, more or less from the very outset, markedly more sparse than on equivalent parts of Great Britain's network. For a long time, standard passenger fare on French rural branch lines was, I believe, three workings each way per day. This kind of situation has obtained in various parts of Europe: on the Polish state railways in the 1980s, with an enormous kilometrage of rural lines still in passenger use, the norm on those seemed to be again, three daily in each direction (sometimes still less, especially on narrow-gauge lines). Great Britain was long one of Europe's areas (geographically speaking), with lesser-lines passenger frequencies on the generous side.
