The class 220 or DE2000 made by ADtranz in Germany is Greece's best mainline diesel locomotive. It's power rating is 2100 kW. 36 machines were built 1997-2004 and 27 are reported to still be in usable condition.
Picture from Dhomokos 27.11.2018 by Marek Graff.

This is also a class 220 diesel like the ones on the picture shown above, but this one is now owned by Rail Cargo Goldair. Rail Cargo group is the former Austrian state railways ÖBB Cargo. They set up a joint venture with a Greek local private logistics company Goldair and they have now a handful of modernised locomotives. Rail Cargo Goldair is especially active in hauling goods from the harbour of Thessaloniki towards the northern neighbouring countries, such as Macedonia (to be renamed to North Macedonia).
Picture from Thessaloniki, the capital of the Greek state of Macedonia, 27.11.2018 by Marek Graff.

The shunter locomotive A-114 is actually a German class V60 machine from former West Germany. They were built by Krupp in Germany in the 1960s, this one in 1965. 30 locomotives, numbered A-101 to A-130 were delivered 1962-67. As last was documented, 23 were still in service. But even this one is still in its original livery and it looks like it hasn't received too much servicing during recent years. In Thessaloniki it is used primarily for shunting of express train coaches. Previously there was also a service for customers to loead their cars on trains, but this is inactive by now.
Picture from Thessaloniki 29.11.2015 by Ilkka Siissalo.

Side view of the same locomotive A-114 as above.
Picture from Thessaloniki 29.11.2015 by Ilkka Siissalo.

The same locomotive, still from a different angle.
Picture from Thessaloniki 29.11.2015 by Ilkka Siissalo.

Still the same locomotive. From this angle it looks almost as if it were new.
Picture from Thessaloniki 29.11.2015 by Ilkka Siissalo.

Ths A125 is a similar West German V60 as the machine in pictures above, but it looks like it would be in a really brilliant shape in comparison with the other Greek locomotives. The reason is obvious: It has all the time during the post-financial crash rioting been behind locked tall fences. It is a shunter operating in Thessaloniki harbour and even here it was photographed over a very tall fence (and partly also trespassing into a restricted area).
Picture from Thessaloniki harbour 29.11.2015 by Ilkka Siissalo.

One of the same V60 diesels of Deutsche Bundesbahn of the 1960s and it still looks like nothing has been fixed ever since. These machines were built by Krupp in mid-1960s in 1962-67. 30 were sold to Greece and as last reported, 23 were still in use. It's the original, meaning it still has the old Maybach GT06A engine producing 478 kW (and a lot of smoke ;-).
Picture from near the Fedonos street in Thessaloniki 10.6.2016 by Ilkka Siissalo.

Three guys operating a shunter. Two men handle the wagons and switches while a third one is driving.
Picture from near the Fedonos street in Thessaloniki 10.6.2016 by Ilkka Siissalo.

The most modern locomotive of Thessaloniki harbour, a Zephir Lok 4.90 shunter, which can run not only on railroad tracks but also on roads. Similar machines have become quite popular in other harbours and logistics centers elsewhere too. It is a so called locotractor built in Italy in 12 different sizes and varieties. Today these can be found almost all over Europe.
Picture from Thessaloniki harbour 29.11.2015 by Ilkka Siissalo. And note ! No graffiti, no broken glasses. Because of the fences. You can see some of the ca. 3 m high fence even in the picture.

This old huge line diesel, seen here over a tall fence at the harbour of Thessaloniki is from a ten locomotives series from the year 1962. It has been built by Alco in USA. As last counted, seven out of ten were still in use. Not all ten of these machines looked the same, some have tall short frontal parts whereas this one has a lower part in front of the cab.
Picture from Thessaloniki harbour 29.11.2015 by Ilkka Siissalo.

Same old line diesel no. A-206 seen from the side of its longer front.
Picture from Thessaloniki harbour 29.11.2015 by Ilkka Siissalo.