January

• January 1 – Lithuania received chairmanship of Organization for Security and Co-operation in Europe
• January 1 – Strong snowstorm results in approximately 34,000 people being left without electricity.^[1]
• January 1 – Lithuania received chairmanship of NATO embassy in Georgia to represent alliance in country and help it to join to the NATO.^[2]
• January 21 – Prime Minister Andrius Kubilius called a special meeting because of too big heating prices in Capital City of Vilnius.^[3]
• January 25 – 4 elderships in Pagėgiai municipality announced extreme situation because of floods.^[4]

February

• February 7 – Nemunas River flood started in Jonava district municipality and Kaunas district municipality.^[5][6]
• February 8 – strong wind killed 3 people, 46,000 people being left without electricity and closed Port of Klaipėda^[7]
• February 26–27 – national elections to cities councils.

March

• March 8 – resignation of Minister of Economy Dainius Kreivys.
• March 23 – Lithuanian government approves of personal bankruptcy legislation.

April

• April 28 – Lithuania's Omnitel opened LTE "4G" network working in 5 biggest cities.^[8]

May

June

• June 28 – Seimas approved the law under which Lithuanian-Belarusian border inhabitants can easily cross the border.^[9]

July

• July 6 – Ieva Gervinskaitė won Miss Lithuania 2011.
• July 8 – Agrowill Group become second Lithuanian company which selling shares on the Warsaw Stock Exchange.
• July 10 – Lithuania won FIBA Under-19 World Championship.

Multi-sport events

• SELL Student Games in Kaunas.^[10]

Athletics (track and field)

• 4 March – Austra Skujytė won silver medal in 2011 European Athletics Indoor Championships. It is the first independent Lithuania medal in championship.
• Local events
  • February 18–19 – National Indoor championship in Klaipėda.
  • May 25 – Lithuania Open 100 km running championship in Nida.
  • July 23–24 – 2011 Lithuanian Athletics Championships in Kaunas.
  • September 11 – Vilnius Marathon.
  • September 24 – National Half Marathon Championship in Nida.

^[11]

Basketball

• September 3–18 – Lithuania will host EuroBasket 2011.^[12]

Boxing

• 2011 Lithuanian Boxing Championships

Darts

• October 14 - Vilnius will host Lithuania Open darts championship.^[13]

Football

• 2010–11 Baltic League.
• 2010–11 Lithuanian Football Cup.

Sambo

• Vilnius wil host the 2011 World Sambo Championships.

Snowboarding

• 29 January first time started Lithuanian Snowboarding Championships^[14]

Swimming

• 28–30 June 2011 Lithuania Swimming Championships in Alytus^[15]

Volleyball

• 11–14 August Capital City of Vilnius wil host U18 European Beach Volleyball Championships for men and women near the White Bridge.^[16]