The previous minister, Giulio Tremonti, was forced from office earlier this month when he fell out with allies of the coalition.
Mr Berlusconi caused an uproar when he took on the portfolio himself.
Italy, which faces European Commission fines over its deficit, is under pressure to sort out its finances.
The deficit is currently forecast at 3.2% of GDP, above the critical 3% level.
Prime Minister Berlusconi also has to find some way of fulfilling his 2001 election campaign pledge of slashing taxes by 2006.
Mr Siniscalco, 50, has a PhD in economics from Cambridge University in Britain and a diploma in law from Turin University.
He is said to be an expert on privatisation.
Domenico Siniscalco Director General of the Treasury, from October 2001 to dateBorn in Turin, 1954; married; two sons. Laurea in Law, Turin University; PhD in Economics, Cambridge University.
Full Professor of Economics at the University of Turin, (currently on leave) after lecturing previously at LUISS, University of Cagliari, John Hopkins University, University of Cambridge, UCL-CORE.
Prior to his appointment as Director General of the Treasury, has served on the Board of numerous listed companies, among which ENI, Telecom Italia.
He is author of over 90 scientific publications on privatisations, environmental economics, industrial organization published in refereed journals. Before he was appointed as Director General, he has been columnist of the Sole 24 Ore.
Ultimi Articoli
Goldoni al Teatro San Babila di Milano con La Locandiera
Ceresio in Giallo chiude con 637 opere: giallo, thriller e noir dall'Italia all'estero
Milano celebra Leonardo — al Castello Sforzesco tre iniziative speciali per le Olimpiadi 2026
Trasporto ferroviario lombardo: 780.000 corse e 205 milioni di passeggeri nel 2025
Piazza Missori accoglie la Tenda Gialla – Tre giorni di volontariato under zero con i Ministri di Scientology
Neve in pianura tra venerdì 23 e domenica 25 gennaio — cosa è realmente atteso al Nord Italia
Se ne va Valentino, l'ultimo imperatore della moda mondiale
La mortalità per cancro cala in Europa – tassi in diminuzione nel 2026, ma persistono disparità
Carofiglio porta — Elogio dell'ignoranza e dell'errore — al Teatro Manzoni