The following is a timeline of the history of the city of Treviso in the Veneto region of Italy.

Prior to 14th century

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• 46 BCE – Tarvisium becomes a Roman municipium (approximate date).^[1]
• 1st C. CE – Via Claudia Augusta (road) built in vicinity of town.^[1]
• 6th C. CE – seat of a Lombard duke. ^[2]
• 550 – Roman Catholic Diocese of Treviso established (approximate date).^[3]
• 773 CE – Mint established (approximate date).^[1]
• 776 – "Charlemagne entered Treviso."^[1]
• 899 – Treviso sacked by Magyar forces.^[4]
• 952 – Treviso becomes part of the Holy Roman Empire.^[1]
• 1000 – Treviso Cathedral construction begins (approximate date).^[1]
• 1050 – Chiesa di San Giovanni Battista (Treviso) [it] (church) built (approximate date).^[1]
• 1117 – Earthquake.
• 1135 – Biblioteca capitolare di Treviso [it] (cathedral library) cataloged.^[1]
• 1141 – Treviso Cathedral remodelled in Romanesque style.^[2]
• 1153 – Mestre-Treviso Terraglio [it] (road) mentioned.
• 1176 – Podestà of Treviso [it] office established.^[1]
• 1183 – Peace of Constance - independence from the Lombard league.^[2]
• 1217 – Palazzo dei Trecento built.^[1]
• 1218 – Torre Civica di Treviso [it] (tower) built.
• 1219 – Walls of Treviso [it] expanded.^[1]
• 1226 – Convento di San Francesco (Treviso) [it] (monastery) established (approximate date).^[1]
• 1263 – University established.^[4]
• 1267 – Loggia dei Cavalieri [it] built.^[1]
• 1269 – Palazzo del Commune built on the Piazza dei Signori.^[2]
• 1270 – Chiesa di San Francesco (Treviso) [it] (church) built.^[1]

14th–19th centuries

• 1312 – "A brief republic was proclaimed in Treviso" (until 1318).^[1]
• 1329 – Cangrande I della Scala in power.^[4]
• 1339 – March of Treviso becomes part of the Venetian Republic.^[2]
• 1346 – Chiesa di Santa Caterina (Treviso) [it] (church) construction begins.^[1]
• 1368 – Chiesa di San Nicolò (Treviso) [it] (church) built.^[1]
• 1389 – Santa Lucia Church built.^[1](it)
• 1471 – Printing press in operation.^[5]
• 1473 – Chiesa di Santa Maria Maggiore (Treviso) [it] (church) built.^[1]
• 1490 – Palazzo Pretorio built on the Piazza dei Signori (approximate date).^[1]
• 1511 – Siege of Treviso [it] during the War of the League of Cambrai.
• 1513 – City walls fortified.^[1]
• 1516 – Porta Santi Quaranta [it] (gate) built.
• 1518 – Porta San Tomaso [it] (gate) built.^[1]
• 1692 – Teatro Onigo (theatre) opens^[6]
• 1758 – Chiesa di Sant'Agostino (Treviso) [it] (church) consecrated.^[1]
• 1768 – Treviso Cathedral demolished and rebuilt in Neoclassical style,
• 1769 – Biblioteca comunale di Treviso [it] (library) founded.
• 1797 – Treviso taken by French forces under Édouard Mortier, Duke of Trévise.^[2]
• 1801 – Armistice of Treviso between France and Austria.^[7]
• 1813 – Austrians in power.^[4]
• 1836 – Treviso Cathedral facade remodelled.^[2]
• 1848
  • 19 March: Austrians ousted.^[4]
  • 14 June: Austrian rule restored.^[4]
• 1851 – Treviso Centrale railway station opens; Mestre-Treviso railway [it] begins operating.
• 1866 – Treviso becomes part of the Kingdom of Italy.^[4]
• 1869 – Teatro comunale Mario Del Monaco [it] (theatre) built.
• 1875 – Independence Monument erected.
• 1877 – Vicenza-Treviso Railway [it] begins operating.
• 1885 – Motta di Livenza-Treviso railway [it] begins operating.
• 1886 – Ferrovia Belluno-Feltre-Treviso [it] (railway) in operation.
• 1897 – Population: 36,120.^[8]

20th century

• 1909 – Foot Ball Club Treviso formed.
• 1910 – Treviso tramway [it] begins operating.
• 1911
  • Teatro Eden [it] (theatre) opens.
  • Population: 41,022.^[9]
• 1917 – Treviso sacked by Austrian forces in World War I.^[4]
• 1918 – Campo trincerato di Treviso [it] (defensive trench) built.
• 1932 – Associazione Sportiva Rugby Treviso formed.
• 1933 – Stadio Omobono Tenni (stadium) opens.
• 1935 – Treviso Airport in use.^{[citation needed]}
• 1944 – Bombing of Treviso in World War II.
• 1953 – Treviso Centrale railway station rebuilt.
• 1973 – Stadio Comunale di Monigo (stadium) opens.
• 1975 – Antonio Mazzarolli [it] becomes mayor.
• 1978 – La Tribuna di Treviso newspaper begins publication.^[10]

21st century

• 2013
  • A.C.D. Treviso 2013 (football club) formed.
  • Local election held; Giovanni Manildo [it] becomes mayor.
  • Population: 82,462.^[11]
• 2018: local election held; Mario Conte becomes mayor.