Academic Calendar | Oregon State University

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Academic Calendar

Welcome!

Navigating the calendar

  • The OSU Academic Calendar displays important term dates in ascending order by month and year.
  • Terms that have passed are viewable in the Archived terms section below.
  • The filters can be used to view a specific Category of dates, a Term, a Term Session, and an Academic Year.
  • The majority of OSU courses are held in the Full Term Session, but the non-standard term and the individual summer session dates are also displayed.
  • Use the filter options to see dates and deadlines for a specific term and session. For example, select Fall in the Term dropdown and then select Full Session in the Term Session dropdown, select the Academic Year, then click Apply to see all the important dates for the regular 11-week fall term.

View a quick tutorial video

A submission time of 11:55 p.m. (Pacific Time) applies to all registration deadlines unless stated otherwise.

Archived terms

  • Fall 2024- Summer 2025

Academic calendar filters

Category - Any -CommencementFinals WeeksGrades Posted OnlineHolidaysPriority Registration DatesRegistration DeadlinesTerm Dates Term - Any -FallWinterSpringSummer Term Session - Any -Full SessionSummer Session 2 (1st 4-Week)Summer Session 3 (8-Week)Summer Session 4 (2nd 4-Week)Summer Session 5 (3-Week)Summer Session 6 (Zero Week; 1-Week)Super Term (Term Extension + Full Term)Term 5A - 1st 5 WeeksTerm 5B - 2nd 5 WeeksTerm Extension (Pre-Term) Academic Year - Any -2025-2026 September 2025
Month/Day Day of Week Name
Sep 10 Wednesday Fall Super Term Classes Begin
Sep 10 Wednesday Fall Term Extension Classes Begin
Sep 11 Thursday Last Day to Drop a Fall Extension Course (100% Tuition Refund)
Sep 14 Sunday Last Day to Add a Fall Extention Course Online without Dept. Approval
Sep 19 Friday Last Day to Drop a Fall Super Term Course (100% Tuition Refund)
Sep 19 Friday Last Day to Withdraw from a Fall Extension Course (No Refunds Available)
Sep 19 Friday Last Day to Change the Grading Basis of a Fall Extension Course (by noon)
Sep 23 Tuesday Fall Extension Classes End
Sep 24 Wednesday Fall Term 5A - 1st 5 Weeks Classes Begin
Sep 24 Wednesday Fall Term Classes Begin
Sep 27 Saturday Last Day to Drop a Fall Term 5A - 1st 5 Weeks Course (100% Tuition Refund)
Sep 28 Sunday Last Day to Add a Fall Super Term Course Online without Dept. Approval
Sep 29 Monday Last Day to Add a Fall Term 5A - 1st 5 Weeks Course Online without Dept. Approval
September 2025 - December 2025
Month/Day Day of Week Name
Sep 10 - Dec 5 Wednesday - Friday Fall Super Term Dates
Sep 24 - Dec 12 Wednesday - Friday Fall Term Dates
September 2025 - September 2025
Month/Day Day of Week Name
Sep 10 - Sep 23 Wednesday - Tuesday Fall Term Extension Dates
September 2025 - October 2025
Month/Day Day of Week Name
Sep 24 - Oct 31 Wednesday - Friday Fall Term 5A - 1st 5 Weeks Dates
October 2025
Month/Day Day of Week Name
Oct 2 Thursday Last Day to Withdraw from a Fall Term 5A course with a 50% refund
Oct 5 Sunday Last Day to Drop a Fall Course (100% Tuition Refund)
Oct 5 Sunday Last Day to Add a Fall Course Online without Dept. Approval
Oct 12 Sunday Last Day to Add a Fall Course Online with Dept. Approval
Oct 13 Monday Last Day to Change the Grading Basis of a Fall Term 5A - 1st 5 Weeks Course (by noon)
Oct 13 Monday Last Day to Withdraw from a Fall Term 5A - 1st 5 Weeks Course (No Refunds Available)
Oct 19 Sunday Last Day to Withdraw from a Fall Course (50% Tuition Refund)
Oct 31 Friday Fall Term 5A - 1st 5 Weeks Course Classes End
October 2025 - October 2025
Month/Day Day of Week Name
Oct 6 - Oct 10 Monday - Friday Register to Audit a Fall Course (Friday by 5 pm)
November 2025 - December 2025
Month/Day Day of Week Name
Nov 3 - Dec 5 Monday - Friday Fall Term 5B - 2nd 5 Weeks Dates
November 2025
Month/Day Day of Week Name
Nov 3 Monday Fall Term 5B - 2nd 5 Weeks Classes Begin
Nov 5 Wednesday Last Day to Drop a Fall Term 5B - 2nd 5 Weeks Course (100% Tuition Refund)
Nov 7 Friday Last Day to Add a Fall Term 5B - 2nd 5 Weeks Course Online without Dept. Approval
Nov 11 Tuesday Last Day to Withdraw from a Fall Term 5B Course (50% Tuition Refund)
Nov 11 Tuesday Veterans Day
Nov 12 Wednesday Last Day to Withdraw from a Fall Super Term Course (No Refunds Available)
Nov 12 Wednesday Last Day to Change the Grading Basis of a Fall Super Term Course (by noon)
Nov 14 Friday Last Day to Change the Grading Basis of a Fall Course (by noon)
Nov 14 Friday Last Day to Withdraw from a Fall Course (No Refunds Available)
Nov 17 Monday Winter Priority Registration Opens
Nov 18 Tuesday Last Day to Change the Grading Basis of a Fall Term 5B - 2nd 5 Weeks Course (by noon)
Nov 18 Tuesday Last Day to Withdraw from a Fall Term 5B - 2nd 5 Weeks Course (No Refunds Available)
Nov 27 Thursday Thanksgiving Day
Nov 28 Friday Day after Thanksgiving
December 2025
Month/Day Day of Week Name
Dec 5 Friday Last Day to Withdraw from Fall Term
Dec 5 Friday Fall Term Classes End
Dec 5 Friday Fall Super Term Classes End
Dec 5 Friday Fall Term 5B - 2nd 5 Weeks Course Classes End
Dec 8 Monday Fall Finals Week Begins
Dec 12 Friday Fall Term Ends
Dec 17 Wednesday Fall Extension Grades Available Online
Dec 17 Wednesday Fall Term 5A - 1st 5 Weeks Extension Grades Available Online
Dec 17 Wednesday Fall Super Term Grades Available Online

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Download the Academic Calendar

Use the links above to download the Academic Calendar to your Outlook or Gmail account. To download only the full session dates, select the desired Academic Year, choose "Full Session," and leave the Term set to "Any." This will export only the filtered dates.

When no filters are applied, the download link will display as "Full Academic Calendar." If filters are applied, the download content will update accordingly, and the link will display as "Filtered Academic Calendar."

Additional calendars and deadlines

OSU's 4-year Calendar

View Student Billing Deadlines

View Faculty Grading Deadlines

A visualization of all the sessions in an academic year and how they intersect can be found below:

2025-2026 Academic Year Sessions

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