At the beginning of the WW2 the Greek Royal Navy had the following ships, which were operational:
Cruisers:
Old armoured cruiser AVEROFF (launched Mar 1910 in Italy)
An italian PISA-Class-Cruiser.
http://en.wikipedia.org/wiki/Greek_armored_cruiser_Georgios_Averof
http://en.wikipedia.org/wiki/Pisa_class_cruiser
Destroyers:
4 x italian Freccia class destroyers
http://en.wikipedia.org/wiki/Freccia_class_destroyer
KOUNDOURIOTIS (commissioned Nov 32),
HYDRA (Nov 32
SPETSAI (May 33),
PSARA (May 33)
2 x british modified G-class destroyers
http://en.wikipedia.org/wiki/G_and_H_class_destroyer
VASILEVS GEORGIOS I (27 Dec 38),
VASILLISA OLGA (4 Feb 39),
4 x british “Wild Beast Class”
http://en.wikipedia.org/wiki/Wild_Beast_class_destroyer
AETOS (1911)
IERAX (1911)
LEON (1911)
PANTHER (1911)
Torpedo boats(or small destroyers):
2 x british THYELLA-class
http://en.wikipedia.org/wiki/Thyella_class_destroyer
http://en.wikipedia.org/wiki/Greek_destroyer_Thyella
THYELLA (1906/07),
SPHENDONI (1906/07),
2 x british NIKI-class
http://en.wikipedia.org/wiki/Niki_class_destroyer
http://en.wikipedia.org/wiki/Greek_destroyer_Niki
ASPIS (1906),
NIKI (1905),
5 x italian FIUME-Class TB
These ships were transferred to Greece from Austria-Hungary as War reparations for WW1.
http://en.wikipedia.org/wiki/Greek_torpedo_boat_Kydonia
PERGAMOS (comm 27 Sep 16 as Austro-Hungarian 95.F),
PROUSA (23 Mar 16 as 92.F),
KYZIKOS (19 Aug 15 as 98.M),
KIOS (29 Oct 15 as 99.M),
KIDONIA (13 Mar 16 100.M)
4 x ALKYONI-Class TB
http://www.probertencyclopaedia.com/cgi-bin/res.pl?keyword=Aigli&offset=0
Not very much information about these ships…
AIGIL (comp 1913),
ALKYONE (1913),
ARETHOUSA (1913),
DORIS (1913,
Submarines:
2 x KATSONIS-Class (in fact they where French Circé class submarines)
http://en.wikipedia.org/wiki/Katsonis_class_submarine
http://www.probertencyclopaedia.com/cgi-bin/res.pl?keyword=Katsonis&offset=0
KATSONIS (20 Mar 26),
PAPANICOLIS (Nov 1926),
4 x french build GLAUCOS-Class
http://www.probertencyclopaedia.com/cgi-bin/res.pl?keyword=Glafkos&offset=0
GLAUCOS (launched 1928),
NEREUS (Dec 1927),
PROTEUS (24 Oct 27),
TRITON (4 Apr 28)
AFAIK, there was no real naval fight between italians and greeks.
A few costal bombardments from both sides. A few night-time raids from the greek destroyers. And greek submarines managed to sink a few italian transports.
Nevertheless, it would be interested to get the stats for greek ships for a few small "what-if-szenarios".
Much more interested where the actions of the greeks in Balkan Wars 1912/1913 against the Ottoman Empire. But this is for AoD.