0000708950 2011-05-01 2012-04-30 0000708950 cvsi1:S000008736Member 2011-05-01 2012-04-30 CALVERT VARIABLE SERIES INC Other 2011-12-31 0000708950 false 2012-11-01 2012-11-01 2012-04-30 <div style="padding-left: 0%; padding-right: 0%"> SUPPLEMENT TO CALVERT VARIABLE PRODUCTS PROSPECTUS DATED APRIL 30, 2012 Calvert VP Income Portfolio Date of Supplement: November 1, 2012 After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following: Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div> <div style="padding-left: 0%; padding-right: 0%"> SUPPLEMENT TO CALVERT VARIABLE PRODUCTS PROSPECTUS DATED APRIL 30, 2012 Calvert VP Income Portfolio Date of Supplement: November 1, 2012 After the last paragraph in the section “Investments, Risks and Performance – Principal Investment Strategies” in each Fund Summary (Portfolio Summary for Calvert VP Income Portfolio), insert the following: Tobacco Exclusion. The Fund seeks to avoid investing in companies classified under the tobacco industry sector of the Barclays Global Aggregate Index, the Barclays U.S. High Yield Index or the Barclays Global Emerging Market Index; or, in the opinion of the Fund’s Advisor, any similar securities in the Barclays Municipal Index.</div>